The crystalline allotropes of sulfur are very strong and have a high melting and boiling point while the amorphous allotropes of sulfur are brittle and breaks easily.
What is a crystalline substance?A crystalline substance is one that has a definite arrangement of the atoms in the substance. An amorphous substance lacks this definite arrangement. We can see this arrangement when we conduct an X-ray crystallography of the sulfur.
Also, the crystalline allotropes of sulfur are very strong and have a high melting and boiling point while the amorphous allotropes of sulfur are brittle and breaks easily.
Learn more about sulfur:https://brainly.com/question/13469437
#SPJ1
Tony walks at an average speed of 70m/min from his house to school. if the distance between his home and the school is 2100 m, how much time does it take for tony to walk to school?
Tony with an average speed of 70m/min walks the distance from his house to school in a time of: 30 min
The formula and procedure we will use to solve this exercise is:
t = x/v
Where:
x = distance
t = time
v = velocity
Information about the problem:
v = 70m/minx= 2100 mt = ?Applying the time formula we have that:
t = x/v
t = 2100 m/ (70m/min)
t = 30 min
What is velocity?It is a physical quantity that indicates the displacement of a mobile per unit of time, it is expressed in units of distance per time, for example (miles/h, km/h).
Learn more about velocity at: brainly.com/question/80295?source=archive
#SPJ4
Lithium
Sodium
Which of these statements are true?
O sodium is much smaller than lithium
O Lithium has more protons, neutrons and electrons.
O There is no difference between lithium and sodium.
O Sodium has more protons, neutrons and electrons than Lithium
Sodium has more protons, neutrons, and electrons than Lithium.
Components of atomsThe nuclei of atoms consist of protons and neutrons. Both component form the bulk of the mass of atoms.
Outside the nucleus, electrons are found in the orbitals surrounding the nucleus.
The atomic number of an atom is the number of protons in the nucleus of the atom. For neutral atoms, the number of protons and electrons is the same.
The atomic number of Lithium is 2, while that of Sodium is 11. This means Lithium has 2 protons while sodium has 11.
The atomic mass of Lithium is 7 while that of sodium is 23. This means that sodium has more neutrons than lithium.
Thus, sodium has more neutrons, electrons, and protons, than lithium.
More on atomic components can be found here: https://brainly.com/question/24837697
#SPJ1
justify the statements that the cell is the basic unit of all living things
cell is a basic unit of all living things.
Explanation:
because all the metabolic activities performed by the body are outcome of cellular activities
a. Write chemical formula of copper (I) oxide, iron (III) carbonate, and magnesium sulfate
b. Calculate the proportion by mass of the elements in each compound.
(Given: M(Cu) = 64 M(Fe) = 56 M(S) = 32 M(Mg) = 24 M(O) =16 M(C) = 12)
Chemical Formula : It is the method of showing the information about the chemical proportion of atoms of a given element.
Types of Chemical Formula : There are three types namely
1. Molecular
2. Empirical
3. Structural
a. The chemical formula of the given compound asked in the problem are :
i. Copper (II) oxide - CuO
ii. Iron (III) Carbonate - Fe2(CO3)3
iii. Magnesium Sulphate - MgSO4
b. The proportion by mass of the given compound are :
i. CuO = Atomic mass of copper and oxygen are = 64 and 16
so, mass proportion = 64 / 16 = 4 : 1
ii. Iron Carbonate : = 14 :1
iii. Magnesium Suphate - 24 / 32 = 3:4
To know more about Chemical Formula here :
https://brainly.com/question/11995171?referrer=searchResults
#SPJ1
list some characteristic properties that distinguish the metallic elements from the nonmetallic elements
The metals are malleable and ductile, which means that they can be beaten into sheets and can be given any desired shape while the nonmetals are brittle and soft. Metallic elements are considered as good conductors of electricity and heat while nonmetallic elements are poor conductors. Metals are lustrous while nonmetals are nonlustrous.
A metal is a material that, when freshly prepared, polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well. Metals are typically ductile (can be drawn into wires) and malleable (they can be hammered into thin sheets).
Learn more about Metals here:
https://brainly.com/question/18153051
#SPJ4
slove this...........................
Explanation:
................easy ngl
Answer:
for protons going down it is:
(already given)
6
6
8
8
17
17
for neutrons going down it is:
6
7
8
(already given)
10
18
20
for electrons going down it is:
6
6
8
8
(already given)
17
Explanation:
bascially the number of protons is the bottom number to the left and the number of electrons is the same as the number of protons and the number of neutrons is basically the mass number (the top right one) minus the proton number
hope this helps:)
Which statement about one atom can definitively tell you the identity of the element? a. The atom has 1 proton. b. The atom has 2 neutrons. c. The sum of the number of protons and neutrons in the atom is 3 d. The difference between the number of neutrons and protons in the atom is 1.
Answer: 2(B)
Explanation: It's a little confusing to read but from my understanding it's 2 because the atomic number is the number of protons in an atom, and isotopes have the same atomic number but differ in the number of neutrons
draw the diazonium cation formed when cytosine reacts with nano2 in the presence of hcl. cytosine reacts with n a n o 2 and h c l. cytosine is a 6 membered ring consisting of a nitrogen bonded to a hydrogen at position 1, a carbon double bonded to oxygen at position 2, and a nitrogen at position 3 that is double bonded to the carbon on position 4. there are carbons at positions 5 and 6 and they are double bonded to each other. lastly, the carbon in position 4 has an nh2 substituent.
When cytosine reacts with NaNO2 and HCl to form Diazonium salt.
What is Diazonium salt?Diazonium salt or diazonium compounds are defined as the group of the organic compounds which sharing a common functional group [R−N⁺≡N]X⁻ where R is any organic group, like an alkyl or an aryl, and X can be an organic or inorganic anion, like a halide.
As we know that, Cytosine is a 6 membered ring consisting of
a nitrogen arom is bonded to a hydrogen at position 1. a carbon is doubly bonded with the oxygen present at position 2.and a nitrogen which is at position 3 that is doubly bonded with the carbon at position 4. There are carbons at positions 5 and 6 and these are doubly bonded with each other. Lastly, the carbon in position 4 has an NH2 substituent.Thus, we concluded that the cytosine reacts with NaNO2 and HCl to form Diazonium salt.
learn more about Diazonium salt:
https://brainly.com/question/15999011
#SPJ4
Find the distance between the two points rounding to the nearest tenth (if necessary). ( 8 , − 5 ) and ( 1 , 1 )
The distance between the two points ( 8 , − 5 ) and ( 1 , 1 ) is determined as 9.2 units.
What is the distance between two points?
The distance between two points is calculated using the following equation.
for a given points (x1, y1), (x2, y2), the distance, d is;
d = √[(x2-x1)² + (y2 - y1)²]
From the given question;
x1 = 8, y1 = -5
x2 = 1, y2 = 1
distance = √[(1-8)² + (1 - -5)²]
distance = √[(-7)² + (16)²]
distance = 9.22 units
Thus, the distance between the two points ( 8 , − 5 ) and ( 1 , 1 ) is determined as 9.2 units.
Learn more about distance between two points here: https://brainly.com/question/7243416
#SPJ1
a 3.214 g sample of magnesium reacts with 8.416 g of bromine (br2). the only product is magnesium bromide (mgbr2). how much mgbr2 is formed?
The reaction between 3.214 g magnesium and 8.416 g bromine produces 9.7 g of MgBr2.
The balanced chemical reaction of magnesium and bromine is shown below.
Mg + Br2 → MgBr2
Step 1: Convert the given mass of reactants to moles of reactants
moles Mg = mass Mg / molar mass Mg
moles Mg = 3.214 g / 24.31 g/mol
moles Mg = 0.1322 mol
moles Br2 = mass Br2 / molar mass Br2
moles Br2 = 8.416 g / 159.808 g/mol
moles Br2 = 0.0527 mol
Step 2: Bromine (Br2) is determined to be the limiting reactant. Since the stoichiometric ratio between the reactants is equal to 1, the reactant with a lower number of moles would be the limiting reactant.
Step 3: Convert moles of Br2 to the mass of MgBr2. Their stoichiometric ratio is also 1, which makes the solution easier.
mol Br2 = mol MgBr2
mass MgBr2 = mol MgBr2 * molar mass MgBr2
mass MgBr2 = 0.0527 mol * 184.118 g /mol
mass MgBr2 = 9.70 g
To learn more about stoichiometric ratios, please refer to https://brainly.com/question/9413308.
#SPJ4
What is the mass of reactants and products: 2H2 + O2 —> 2 H2O
The molecular mass of reactants and products in 2H2 + O2 —> 2 H2O is 36 g/mole.
What is molecular mass?Molecular mass can be defined as the some of the atomic masses of all the atoms in the molecule of a substance.
It is a molecule relative mass represented by atomic mass unit. It is used to those substance whose constituent particles are molecule.
The molecular mass of 2H2 + O2 —> 2 H2O can be calculated as:
= 2(1x2) + (16x2) -> 2(1x2 + 16)
= 2(2) + 32 ->2(2 + 16)
= 4 + 32 -> 36
= 36 -> 36
Therefore, the molecular mass of reactant is equal to the molecular mass of product.
Thus, the molecular mass of reactants and products in 2H2 + O2 —> 2 H2O is 36 g/mole.
To learn more about molecular mass, refer to the link below:
https://brainly.com/question/1440369
#SPJ1
suppose a student poured equal volumes of water and naoh in two different flasks. he forgets to label his flasks and is confused about which is which. he decides to determine the contents of the flasks by adding 10 ml of each to 10 ml of hcl.
The one with higher temperature is the one with NaOH as heatis given off during the neutralization reaction that occurs.
What is volume?Volume can be defined as the amount of space a substance or an objects occupies usually in a closed container.
Volume is measures in litres.
When water is added to dilute acid like HCl, they become more dilute.
When NaOH is added to HCl, a neutralization reaction occurs.
The student will determine the contents of the flasks by adding 10 ml of hcl to each flask. If the NaOH reacts with the Hcl, there will be an increase in temperature.
The increase in temperature is due to the heat of neutralization of the reaction between NaOH and HCl.
Learn more about volume at: https://brainly.com/question/1972490
#SPJ1
What causes the element name to change (grade 9 Science)?
Find the THREE true statements:
☑️If Zinc has an atomic number of 30 and a mass number of 65, the correct number of protons, neutrons, and electrons, respectively, is: 30,35,30
☑️If Magnesium has an atomic number of 12 and a mass number of 24, the correctnumber of protons, neutrons, and electrons, respectively, is: 12,24,12
☑️If Lithium has an atomic number of 3 and a mass number of 7, the correct number of protons, neutrons, and electrons, respectively, is: 3,4,3
☑️If Calcium has an atomic number of 20 and a mass number of 40, the correct number of protons, neutrons, and electrons, respectively, is: 20,20,20
☑️If Fluorine has an atomic number of 9 and a mass number of 19, the correct number of protons, neutrons, and electrons, respectively, is: 9,9,9
Taking into account the definition of atomic number and mass number, the three true statements are:
If Zinc has an atomic number of 30 and a mass number of 65, the correct number of protons, neutrons, and electrons, respectively, is: 30,35,30If Lithium has an atomic number of 3 and a mass number of 7, the correct number of protons, neutrons, and electrons, respectively, is: 3,4,3If Calcium has an atomic number of 20 and a mass number of 40, the correct number of protons, neutrons, and electrons, respectively, is: 20,20,20Subatomic particlesAll atoms are made up of subatomic particles: protons and neutrons, which are part of their nucleus, and electrons, which revolve around them. Protons are positively charged, neutrons are neutrally charged, and electrons are negatively charged (electrons).
Atomic numberThe atomic number of a chemical element is the total number of protons that each atom of that element has.
Atoms in nature are electrically neutral, so the number of positive and negative particles is the same. That is, in an atom that has no charge, the atomic number also indicates the number of electrons.
Mass numberThe mass number indicates the total number of particles in the nucleus. That is, the mass number is the sum of the number of protons and the number of neutrons in the atomic nucleus:
Mass number = (number of protons) + (number of neutrons)
So, If you know the number of protons and the mass number, the number of neutrons can be calculated as:
Number of neutrons= mass number - number of protons
This caseConsidering the definition of atomic and mass number, you can know:
Zinc has an atomic number of 30 and a mass number of 65. The correct number of protons and electrons is 30, while the number of neutrons is 65-30= 35Magnesium has an atomic number of 12 and a mass number of 24. The correct number of protons and electrons is 12, while the number of neutrons is 24 -12= 12Lithium has an atomic number of 3 and a mass number of 7. The correct number of protons and electrons is 3, while the number of neutrons is 7-3= 4Calcium has an atomic number of 20 and a mass number of 40. The correct number of protons and electrons is 20, while the number of neutrons is 40 -20= 20Fluorine has an atomic number of 9 and a mass number of 19. The correct number of protons and electrons is 9, while the number of neutrons is 19 -9= 10Finally, the three true statements are:
If Zinc has an atomic number of 30 and a mass number of 65, the correct number of protons, neutrons, and electrons, respectively, is: 30,35,30If Lithium has an atomic number of 3 and a mass number of 7, the correct number of protons, neutrons, and electrons, respectively, is: 3,4,3If Calcium has an atomic number of 20 and a mass number of 40, the correct number of protons, neutrons, and electrons, respectively, is: 20,20,20Learn more about number of protons, neutrons and electrons:
https://brainly.com/question/5527493
https://brainly.com/question/18575920
#SPJ1
Reading chemical symbols
Answer:
do u need answer for all of them?
A solid metal sphere has a volume of 0.0041 m² and a mass of 0.859 kg. Determine the
density in g/cm³
The density in g/cm³ is 0.2095 g/cm³.
The mass of a material substance per unit volume is known as density. The equation for density is d = M/V, where d represents density, M is mass, and V is volume. Density is often measured in grams per cubic centimeter. The weight of an object can be calculated by dividing its mass by the acceleration of gravity; this value is often more significant practically than the mass.
Other tables include information on the weight of various materials per unit volume; this quantity is also known as weight density, specific weight, and unit weight. also take a look at specific gravity. The most popular way to indicate particle density is as n, which instead of referring to the number of particles per unit volume
To learn more about density please visit-
https://brainly.com/question/1028144
#SPJ9
a covalent bond is likely to be polar when . question 4 options: the two atoms sharing electrons are of the same elements carbon is one of the two atoms sharing electrons one of the atoms sharing electrons is more electronegative than the other atom the two atoms sharing electrons are equally electronegative
A covalent bond is likely to be polar when one of the atoms sharing electrons is more electronegative than the other atom.
When the electronegativity difference is greater, the bond polarity is increasing.
Electronegativity (χ) is a property that describes the tendency of an atom to attract a shared pair of electrons.
Atoms with higher electronegativity attracts more electrons towards it, electrons are closer to that atom.
For example, water (H₂O) is a polar molecule. Atom of oxygen has higher electronegativity and negative charge, while atom of hydrogen has lower electronegativity and positive charge. Atoms of hydrogen and oxygen are connected by polar covalent bonds.
More about covalent bonds: brainly.com/question/3447218
#SPJ4
Most earth sciences specialize in studying one aspect of the planet true or false
Answer:
oil & mining are big in earth sciences
Answer:
false
Explanation:
there are lot of aspects of Mars that they are disconcerting still like scientists get paid a lot because of that astronomers get paid a lot because of that also.
What is the process that wears away the surface of the earth?
Answer:
erosion
Explanation:
erosion is when the top layer of the earth gets slowly worn away bhy water and ither stuff.
How would I find the mass of the statue? Is it conversions or just basic math?
The replacement of gold from trapped pedestal is a mathematical equation.
What is density?Density is defined as the measurement of how tightly the material is packed together. It can also be defined as the substance mass per unit volume.
The S.I. unit of density is kilogram per cubic meter.
Density = mass / volume
Thus, the replacement of gold from trapped pedestal is a mathematical equation.
To learn more about density, refer to the link below:
https://brainly.com/question/6107689
#SPJ1
part 1. determine the molar mass of a 0.458-gram sample of gas having a volume of 1.20 l at 287 k and 0.980 atm. show your work.
The ideal gas equation can be used to determine the molar mass of the substance with the help of the moles. The molar mass of the gas having a mass of 0.458 grams is 9.15g/mol.
What is the ideal gas law?
Ideal gas law gave the relation between the moles, pressure, temperature, volume, and the gas constant. The moles of the ideal hypothetical gas can be used to calculate the molar mass.
An ideal gas equation is given as:
PV =nRT
Given,
Mass = 0.458 gm
Pressure (P) = 0.98 atm
Volume (V) = 1.2 L
Temperature (T) = 287 K
Gas constant (R) = 0.0821
Substituting values in ideal gas as:
0.98 × 1.2 = n × 0.0821 × 287
n = 1.18 ÷ 23.56
n = 0.05moles
Now, moles are used to calculate molar mass as:
molar mass = mass ÷ moles
= 0.458 ÷ 0.05
= 9.15g/mol
Therefore, 9.15g/mol is the molar mass of the unknown gas.
Learn more about ideal gas, here:
https://brainly.com/question/27946792
#SPJ4
you have a 5.0 ml sample of a protein in 0.5m nacl. you place the protein/salt sample inside dialysis
The final Concentration of salt having a 5.0 ml sample of a protein in 0.5m nacl. you place the protein/salt sample inside dialysis is 0.62mM.
What is Concentration?Concentration is defined as the ratio of number of moles of substance to the volume of the substance occupied.
The dialysis is normally dilution of the solution as the dialysis bag the salt present in protein sample is pass and go to the dialysing rhe solvent (water).
CalculationAs we know that,
M1V1 = M2V2
M1 and M2 are the initial and final concentration of NaCl in the dialysis bag.
V1 and V2 are the initial and final volume of NaCl in the dialysis bag.
Given,
M1 = 0.5M
V1 = 5mL = 0.005L
V2 = 4 + 0.005 = 4.005L
By substituting all the values, we get
M2 = 0.5 × 0.005/4.005
= 0.00062M
= 0.62mM.
Thus, we calculated that the final Concentration of salt is 0.62mM.
learn more about Concentration:
https://brainly.com/question/14803618
#SPJ4
DISCLAIMER:
The above question is incomplete.
Here is the complete question:
You have a 5.0 ml sample of a protein in 0.5M NaCl. You place the protein/salt sample inside dialysis tubing and place the bag in a large beaker of distilled water. Your goal is to remove as much NaCl from the sample as possible. Since you know that the final salt concentration will be the same inside the tubing as out, you can calculate the final concentration of the salt.
A. If you decide to place the dialysis bag in 4.0 L of distilled water for 12 h the final concentration of the salt would be in ________ mM
(bonus) Which of the following sets of elements should have the most similar chemical properties? (1 pt)
*
1 point
Sodium (Na, #11), Aluminum (Al, #13), Chlorine (Cl, #17)
Chlorine (Cl, #17), Argon (Ar, #18), Potassium (K, #19)
Beryllium (Be, #4), Calcium (Ca, #20), Radium (Ra, #88)
Beryllium, Calcium, Radium elements should have the most similar chemical properties.
What are chemical properties?
Chemical properties can be defined as a characteristics or behavior of the substance that be observed when it undergo a chemical change or reaction. Chemical properties may include flammability, toxicity, acidity, basicity, reactivity, heat of combustion and many more.
Beryllium, Calcium and Radium are the elements of alkaline earth metal and the share most of the similar chemical and physical properties.
Thus, Beryllium, Calcium, Radium elements should have the most similar chemical properties.
To learn more about chemical properties, refer to the link below:
https://brainly.com/question/1935242
#SPJ1
Which of the following is an element?
A. Methane
B. Ozone
C. Ice
D. Air
Answer:
Methane
Explanation:
Beause it's a compound
Answer:
A methane
Explanation:
Methane is one carbon compound in which carbon is attached by hydrogen atom's. It's molecular formula is CH4
When making the heating curve for your experiment today the water begins to plateau at a specific temperature. What is this state called?.
From the question, the point at which the heating curve does plateau is the boiling point of water.
What is the heating curve?The heating curve is used tool that we use to see how the temperature change by the addition of heat affects the state of matter in which the material is obtained. The vertical axis could be used to plot the temperature while the horizontal axis could be used to plot the changes in the state of matter.
There are three states of matter namely;
Liquid
Solid
Gas
Water can be able to exist in all the states of matter that have been mentioned but there is a temperature range at which each state of matter can be observed. Thus we have the solid range, liquid range and the gaseous range of water.
Looking at the graph, when we begin to heat the water, the water is liquid at the start but the temperature increases rapidly. This increase would continue until the temperature of the water begins to plateau. The point of plateau is the boiling point of water.
Learn more about boiling point:https://brainly.com/question/2153588
#SPJ1
This state at a specific temperature is called phase change.
For example, evaporization is phase change process in which the water changes from a liquid to a gas (water vapor).
Other example, condensation is phase change process in which the water changes from a gas to a liquid.
Heating curve of water show how the temperature changes as water is heated up. A heating curve for water that shows transition zones (see the picture below).
The first phase change is melting, the temperature stays the same while an ice melts.
The second phase change is boiling, the temperature stays the same while a water boils.
More about phase change: brainly.com/question/27842512
#SPJ4
ASAP
Calculate density
Mass = 23.6 g
Volume = 30.0 cm³
O
O
0.79 g/cm³
54 g/cm³
1.3 g/cm³
6.4 g/cm³
Answer:
Determine the weight of an object. For example, a glass of water weights 200 grams net (not including the glass).
Find out the volume of an object. In our example, it's 200 cm3 .
Divide weight by volume. 200 g / 200 cm3 = 1 g/cm3
Optionally, change the unit.
Explanation:
Which is not an advantage of using the pyramid of energy? a. It takes into account the rate of production over a period of time. B. Assigning the decomposers and detritivores to a particular trophic level. C. There are no inverted pyramids. D. The input of solar energy can be added. Please select the best answer from the choices provided a b c d
Pyramid of energy has not an advantage: B. Assigning the decomposers and detritivores to a particular trophic level.
Pyramid of energy is a graphical representation of the amount of energy at each trophic level of a food chain (see the picture below).
The bottom level represents the producers, followed by primary, secondary and tertiary consumers.
The decomposers and detritivores do not have a particular trophic level.
Decomposers break down dead plants and animals into simpler inorganic substances.
Detritivores are organisms, for example a fungus or an earthworm, that are decomposing organic matter.
Decomposers have very important role in the circle of life.
More about the pyramid of energy: brainly.com/question/17791689
#SPJ4
Answer:
b. Assigning the decomposers and detritivores to a particular trophic level.
Explanation:
Upon combustion, a compound containing only carbon and hydrogen produces 3.54 g CO2 and 1.09 g H2O. Find the empirical formula of the compound.
The empirical formula of the compound is CH₃
What is the empirical formula of the compound?The empirical formula is determined as follows:
Given the general equation of the combustion of hydrocarbons as follows:
CxHy + O₂ → x CO₂ + y H₂O
mass of CO₂ produced = 3.54 g
molar mass of CO₂ = 44 g/mol
moles of C in the sample = 3.54/44 = 0.08 moles
molar mass of C = 12 g/mol
mass of C in the sample = 0.08 * 12 = 0.96 g
mass of H₂O produced = 1.09 g
molar mass of water = 18 g/mol
moles of H in the sample = 1.09 /18 * 2
moles of H in the sample = 0.12 moles
Ratio of C : H = 0.08 : 0.12
Ratio of C : H = 1 : 3
Therefore, the empirical formula of compound = CH₃
Learn more about empirical formula at: https://brainly.com/question/13058832
#SPJ1
When looking for a mathematical relationship between two variables use a
When looking for a mathematical relationship between two variables use a line graph.
What is a mathematical variable?
A mathematical variable is one that can be found by the use of algebra or by a the use of graph. We know that a line graph involves plotting the independent variable on the horizontal axis and the dependent variable on the vertical axis.
The relationship between the two variables can be determined by studying how much the data set suits a particular equation of line of best fit or by considering the correlation coefficient of the scatter plot.
Hence, when looking for a mathematical relationship between two variables use a line graph.
Learn more about mathematical variable:https://brainly.com/question/26576272
#SPJ1
Missing parts;
When looking for a mathematical relationship between two variables, use a _____.
A. line graph
B. circle graph
C. bar graph
D. data table
When iron is placed in nitrogen no occurs
Nothing happens if the iron rod is inserted into the nitrogen. However, when the iron rod is suspended in the air.
A non-metal, nitrogen is. As a result, it typically interacts with metals to create ionic compounds. Only when the reactants produce products that allow the system as a whole to release energy does the reaction take place. If the system requires energy to undergo the reaction, the reaction cannot take place. When iron is exposed to oxygen and moisture for an extended length of time, a process known as iron oxide occurs. At the atomic level, oxygen bonds to iron to produce the complex known as an oxide, which weakens the metal bond.
The complete question is - If a piece of pure iron is placed in pure nitrogen, nothing happens. If the iron is exposed to air, it begins to rust. What conclusion can you make about air, based on this observation?
Learn more about nitrogen here-
https://brainly.com/question/16711904
#SPJ9