plz draw a periodic table with all its information​

Answers

Answer 1

Answer:

Explanation:

Hope this helps u!!

Plz Draw A Periodic Table With All Its Information
Answer 2

Answer:

plz following me ❤❤...........,...,.,.

Plz Draw A Periodic Table With All Its Information

Related Questions

What is the type of reaction described: Aqueous lithium iodide and aqueous silver nitrate react to produce solid silver iodide and aqueous lithium nitrate.

A.) Single Replacement
B.) Double Replacement
C.) Synthesis
D.) Decomposition
E.) Combustion

Answers

Answer:

b)

Explanation:

The reaction being described is double displacement. This is because two diffetent compounds react to initially "switch" places with the other. In this case, iodine takes nitrates place, and lithium takes silvers place it's a way of thinking about it. This creates two completely different compounds.

What determines whether a metamorphic rock is foliated or non foliated?

- The number of remaining gas molecules

-Temperature, pressure, and the original type of rock

-The water content as a percentage of the rock volume

The presence or absence of mineral crystals

Answers

Temperature, pressure, and the original type of rock is the correct answer i PROMISE :)

Sulfuryl chloride is in equilibrium with sulfur dioxide and chlorine gas: so2cl2(g) so2(g) + cl2(g) a system with a volume of 1. 00 l is in equilibrium at a certain temperature with p(so2cl2) = 1. 00 bar and p(so2) = p(cl2) = 0. 10 bar. By how much will the number of moles of so2cl2 at equilibrium change if the volume is reduced to 0. 50 l? (a) increase 1-10% (b) increase 11-50% (c) decrease 1-10% (d) decrease 11-50%

Answers

The volume is decreased to 0. 50L, the number of moles of SO₂Cl₂at equilibrium will increase by 1–10% option - a is correct.

What is Le Chatelier's Principle.

The guiding idea of Le Chatelier is as follows: A shift in the position of the equilibrium results from a change in one of the variables that characterize a system in equilibrium and cancels out the effects of that change.

Now to solve this question first we have to know the Le-chatelier's

Principle

The Principal that if a system in chemical equilibrium is subjected to a disturbance it tends to change in a way that opposes this disturbance.

SO₂Cl₂(g) ⇄ SO₂(g) + Cl₂(g)

Initially, there is one molecule at the left hand side of the reaction and two molecules are on the right. But, the Partial pressure of molecules on RHS is lower than LHS. Concentration of RHS molecules is Lower, forward reaction is more favorable.

Decreasing volume would result in increasing the total pressure.

Now, according to Le chatelier's Principle, the equilibrium will shift in such a way to oppose change under compression. Since there are more moles of Products than reactants, to counteract the increased pressure. The equilibrium will shift to LHS increasing the moles

of SO₂Cl₂ but since the concentration (Partial Pressure)

of SO₂Cl₂, it will not increase more than 10%

Hence, answer will be (a) Increase 1-10%.

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Given 750 g of oxygen gas and chlorine gas and an excess of the other reactants, how much potassium chloride (grams) will be produced?
2MnO2 + 4KOH + O2 + Cl2 -> 2KMnO4 + 2KCl + 2H20
must show work

Answers

Answer:

=2h20−2kmno4+2mno2+2ckl+cl2+4hko+o2

Explanation:

step-by-step.

2mno2+4koh+o2+cl2−2kmno4+2kcl+2h20

=2mno2+4hko+o2+cl2+−2kmno4+2ckl+2h20

Which of these statements best describes how a star chart should be held while facing north?
The edge of the map labeled east should be held towards the observer.
The edge of the map labeled south should be held towards the observer.
The edge of the map labeled south should be held on the left of the observer.
The edge of the map labeled east should be held on the right of the observer.

Answers

Answer: The edge of the map labeled south should be held towards the observer.

Explanation: I just took the test with this and it was right

Dalton's Law: John puts 1250 PSI of Oxygen, 780 PSI of Nitrogen and 550 PSI of Helium in a SCUBA tank. What is the total pressure?

Answers

Answer: what do you need help with

Explanation:

According to Dalton law total pressure will be 2580 PSI.

What is Dalton Law?

The overall pressure exerted by a mixture of gases is equal to the sum of the partial pressures exerted by each individual gas in the mixture, according to Dalton's partial pressures law. For instance, the total pressure exerted by a mixture of two gases A and B is equal to the sum of gas A and gas B's respective partial pressures.

Total pressure =[tex]P_{1}+P_{2}..........P_{n}........(i)[/tex]

It is given that,[tex]P_{Oxygen}= 1250 PSI, P_{Nitrogen} = 780 PSI, P_{Helium} =550PSI.[/tex]

Now, put the value of given data in above equation.

[tex]P_{Total} = P_{Oxygen}+P_{Nitrogen}+P_{Helium}[/tex]

=1250 PSI +780 PSI + 550PSI=2580 PSI

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what is the pH of water?

Answers

Answer:

7.00

Explanation:

Pure Water is the only purely neutral substance on earth so it has a neutral pH of 7

10. What would the new concentration be, in percentage, of 1.5 ml of a 10% solution that has been increased with normal saline to 3.0 ml

Answers

The 1.5 ml of a 10% solution that was made into a 3.0 ml solution by adding normal saline now has a new concentration of 5%.

The amount of material in a certain area is referred to as concentration in chemistry. Another definition states that concentration is the ratio of a solution's solute to its entire solution or solvent. Mass per unit volume is a common way to express concentration. However, moles or units of volume can also be used to express the solute concentration. Concentration could be per unit mass instead of volume. Concentration can be computed for any mixture, despite often being used with chemical solutions.

By mathematically dividing the mass, moles, or volume of the solute by the mass, moles, or volume of the solution, one may calculate the concentration (or, less commonly, the solvent).

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If a sample of pure hydrogen gas is ignited very carefully, the hydrogen burns gently, combining with the oxygen gas of the air to form water vapor. Write the unbalanced chemical equation for this reaction.

Answers

H₂ (g) + O₂ (g) ⇒ H₂O (g) because Hydrogen and oxygen gas both exist as diatomic molecules. The water is in gaseous state due to the heat given off by the combustion reaction.

What is combustion reaction?

Combustion, often known as burning, is a high-temperature exothermic redox chemical reaction that occurs between a fuel and an oxidant, typically atmospheric oxygen, to generate oxidized, generally gaseous products in a mixture known as smoke. A combustion reaction is a type of chemical reaction that occurs when any combustible component reacts with an oxidiser to generate an oxidised product. Fires and the release of energy in the form of heat are frequently associated with combustion processes. A hydrocarbon generally combines with oxygen in most combustion processes to produce carbon dioxide and water.

Here,

Because hydrogen and oxygen gas exist as diatomic molecules, H2 (g) + O2 (g) = H2O (g). Because of the heat produced by the combustion reaction, the water is in a gaseous condition.

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a supporter of the phlogiston theory says that when petrol burns in air phlogiston is lost in the air so the mass decreases. Write a letter to this person explaining why the phlogiston theory is wrong

Answers

 Phlogiston theory is wrong as it states that when petrol burns in air phlogiston is lost in  air so the mass decreases but as per law of conservation of mass , mass never increases or decreases rather it is constant.

What is law of conservation of mass?

According to law of conservation of mass, it is evident that mass is neither created nor destroyed rather it is restored at the end of a chemical reaction .

Law needs to be modified in accordance with laws of quantum mechanics under the principle of mass and energy equivalence.This law was proposed by Antoine Lavoisier in the year 1789.

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A 6.25 g sample of magnetite (Fe 3O 4) contains 4.52 g of Fe. What are the percentages of iron and oxygen in magnetite

Answers

We used the formula percentage of iron magnetite=(Mass of Fe/Mass of Fe3O4)100%. We then calculated the percentages of iron magnetite (68%) and oxygen magnetite (32%).

Magnetite is a mineral and one of the most important iron ores, with the chemical formula Fe2+Fe3+2O4. It is a ferrimagnetic iron oxide that is attracted to a magnet and can be magnetized to become a permanent magnet. With the exception of extremely rare native iron deposits, it is the most magnetic of all naturally occurring minerals on Earth. Naturally magnetized pieces of magnetite, known as lodestone, will attract small pieces of iron, which is how ancient peoples discovered magnetism.

Magnetite is black or brownish-black with a metallic luster, has a Mohs hardness of 5-6, and leaves a black streak. Magnetite grains are very common in igneous and metamorphic rocks.

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Find the kinetic energy of a boy of mass 6.5kg running at a velocity of 6.0m/s​

Answers

Explanation:

Given,

Mass(m)=6.5kg

Velocity(v)=6 m/s

K.E.=1/2×mv^2

=1/2×6.5×6^2

=1/2×6.5×36

=117 J

2C(s) + 2H2(g) + 52.4kJ ⇋ C2H4(g)
A) Which direction will the system shift when temperature is decreased?
B) Describe what will happen to the concentration of hydrogen gas when the temperature is increased.
C) State one way which you could increase the concentration of C2H4.

Answers

Answer:

A. The equilibrium will shift towards the right, towards the formation of products

B. The concentration of hydrogen gas will decrease as more of it is used in the formation of products

C. Increasing the temperature at which the reaction is performed will increase the concentration of C2H4, the product of the reaction.

Explanation:

The given reaction is an exothermic reaction as it requires the addition of extra energy of about 52.4KJ in the form of heat for the reaction to proceed towards product formation.

According to L' Chtler principle, when an external constraint is applied to A given system in equilibrium, equilibrium position will shift so as to annul the effect ofnthe constraint imposed on the system.

Therefore, the answers tonthe questions above are given below as follows :

A. The equilibrium will shift towards the right, towards the formation of products in order to remove the effect of the additional heat since the forward reaction is endothermic.

B. The concentration of hydrogen gas will decrease as more of it is used in the formation of products .

C. Increasing the temperature at which the reaction is performed will increase the concentration of C2H4, the product of the reaction as the equilibrium will shift towards the right; formation of products.

The overall charge of an atom or ion is ________ if the number of electrons is ________ than the number of protons.

Answers

The overall charge of an atom or ion is negative if the number of electrons is greater than the number of protons.

What is electron?

A subatomic particle with a negative charge is called an electron. It is found outside the nucleus of an atom and is one of the main constituents of matter. Electrons are responsible for the chemical properties of atoms and thus play an important role in chemical reactions. Electrons have low mass and move around the nucleus at relativistic speeds. They are also responsible for the electrical and magnetic properties of atoms, and for the transmission of light and other forms of energy. Electrons can also interact with other particles and form complex structures, such as molecules.

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The two elements that are frequently used for making transistors are
A. boron and aluminium
B. silicon and germanium
C. iridium and tungsten
D. niobium and columbium

Answers

The two elements that are frequently used for making transistors are  niobium and columbium.

What is an element?

It is defined as a substance which cannot be broken down further into any other substance. Each element is made up of its own type of atom. Due to this reason all elements are different from one another.

Elements can be classified as metals and non-metals. Metals are shiny and conduct electricity and are all solids at room temperature except mercury. Non-metals do not conduct electricity and are mostly gases at room temperature except carbon and sulfur.

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Rutherford's scattering experiment demonstrated Question 9 options: the existence of protons. the existence of electrons. the existence of neutrons. that most of the mass of an atom is in its nucleus. that the charge-to-mass ratio of an electron is constant.

Answers

He came to the conclusion that mass and positive charge are concentrated at the center of the atom from a small number of alpha particles deflected by huge angles with a 180.

Rutherford discovered that most positively charged alpha particles in his gold foil experiment passed straight through the foil without being deflected, leading him to believe that the majority of the atom's space is largely empty.

He came to the conclusion that mass and positive charge are concentrated at the center of the atom because there are few alpha particles that are deflected by huge angles with a 180. Rutherford Atomic Model - J. J. Thomson's "plum pudding" model was unable to account for some experimental findings related to the atomic structure of elements. British scientist Ernest Rutherford performed.

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why atoms of chlorine have no overall charge

Answers

Answer:

because I told them to do.

Every atom has no overall charge (neutral). This is because they contain equal numbers of positive protons and negative electrons. These opposite charges cancel each other out making the atom neutral.

PLZ HELP !!!!
Will give Brainlist

Answers

Answer:

Li, Na, K

Explanation:

They are all group 1 metals

which of the following formulas represent a covalent molecule?
A)CaS
B)Co2
C)Na2O
D)FeCl3

Answers

Answer:

which of the following formulas represent a covalent molecule?

A)CaS

B)Co2

C)Na2O

D)FeCl3

The answer is c hope this helps

What would happen to the boilling point of water at 8000m above sea level where air pressure is lower

Answers

The boiling point will be lower, because water boils when its vapor pressure is equal to atmospheric pressure.

What is atmospheric pressure?

Atmospheric pressure is described as the force exerted on a surface by the air above it as gravity pulls it to Earth. Atmospheric pressure is commonly measured with a barometer.

If you are at 8 000 m above sea level, the air pressure is lower than one atmosphere and the equilibrium between the water and air pressures will be reached before.

In conclusion, Atmospheric pressure is caused by the weight of the air molecules above.

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The boiling point of water at 8000m above sea level where air pressure is lower would be significantly lower.

How does air pressure affect boiling point ?

The boiling point of water decreases as the air pressure decreases. At an altitude of 8000 meters above sea level, the air pressure is significantly lower than it is at sea level, so the boiling point of water would also be significantly lower.

At sea level, the normal boiling point of water is 100 degrees Celsius (212 degrees Fahrenheit) at a standard atmospheric pressure of 101.3 kPa. As the altitude increases, the atmospheric pressure decreases, so the boiling point of water decreases as well.

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16. INFER: Magnesium and Sodium atoms are about the same size. How does the size of a magnesium ion with a 2+ charge compare with that of a sodium ion with a single (+) charge?

Answers

The atomic size of a magnesium ion is smaller than the atomic size of sodium ion.

The distribution of electrons in an element's atomic orbitals is known by its electronic configuration. Atoms' electron configurations adhere to a standard nomenclature in which all atomic subshells that contain electrons are arranged in a sequence with the number of electrons they each hold expressed in superscript.

the electronic configuration of each element's electrons:

Na-[tex]1s^{2}2 s^{2}2 p^{6} 3s^{1}[/tex]

Mg-[tex]1s^{2} 2s^{2} 2p^{6} 3s^{2}[/tex]

The magnesium atom is smaller than the sodium atom because its nuclear charge is larger (12+) than that of sodium (11+), according to the electron configuration. The electrons will be drawn more strongly to the magnesium nucleus, reducing the size of the atom.

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how many elements are there​

Answers

Answer:

there r 118 elements in periodic table..

hope it helps.

Explanation:

there are 118 elements.

suppose scientist have found three oxide materials that could potentially be used as a cathode to a magnesium or sodium anode in a battery for electrons plan an investigation to determine the best battery what characteristics did you test for

Answers

The sodium is the anode of the cell while the magnesium is the cathode of the cell.

How would the investigation go?

We know that in the cell, we are going to have just about two electrodes in the cell and we would have the cathode and the anode. We have to know that the cathode is the point by which the current would enter the cell and the cathode is the point from which the current would leave the cell.

Having said this, we should know that the investigation would have to take into account the reduction potentials of the magnesium as well as that of the sodium as these can be used in the construction of the cell that is under study here.

Hence, by consideration of the electrode potentials, we can see that the sodium would have to act as the anode of the cell and we would keep up with the magnesium as the cathode of the cell.

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Calculate the molarity of a solution of HNO3 if 15.72 mL of the solution neutralize 28.2 mL of 0.100 M H2SO4 solution

Answers

The molarity of a solution of HNO3 if 15.72 mL of the solution neutralize 28.2 mL of 0.100 M H2SO4 solution is 0.89 x 10^-4M

Given the volume of HNO3(V1) = 15.72mL

The volume of H2SO4 (V2) = 28.2mL

concentration of H2SO4 (M2) = 0.100M

Concentration of HNO3  = M1

We know that c = n/v where n is the number of moles.

The moles of H2SO4 (n2) = V2 X M2/1000

n2 = 28.2 x 0.100 /1000 = 28. 2 x 10^-4  

From the reaction: H2SO4 + HNO3 -> NO2+ + HSO4- +H2O

We can see from the equation that the number of moles of HNO3 must be half that number, so: n1 = 28. 2 x 10^-4  /2 = 14.1 x 10^-4

M1 = 14.1 x 10^-4/15.72 = 0.89 x 10^-4M

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river system smallest to largest

Answers

As stated, the Tributary, River, and River system are in order of largest to smallest.

What is the short definition of a river?

A river is a part of the ocean that resembles a ribbon and flows downward under the influence of gravity. A river may be both large and deep or it may be only shallow enough to wade over. A stream, watercourse, or brook is a streaming water source that is lower than a river.

What is a river metaphor?

The river flows through the landscape like a silver ribbon. The fast flowing river plunders everything in its path. The river is a seal that is attempting to return toward the tidal ways. A grizzly bear is the river, leaping to get its prey.

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The complete question is-

Place the following in order from smallest to largest.

River, River system, Tributary.

What are the chances of the offspring being heterozygous for tall plant?

Answers

There are 50% chances of the offspring being heterozygous for tall plant.

Crossing homozygous short tt plants with heterozygous tall Tt plants yields short to tall plants in a 1:1 ratio. So the seed has a 50% chance of growing into a large plant.

Under such conditions, the dominant allele is always expressed and the recessive allele is masked. In this example, the size allele is dominant, so the plant grows.

About 80% of an individual's height is determined by differences in their inherited DNA sequences.

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please help me find the density for this object

Answers

Answer:

D

Explanation:

Density is d=m/v

We have mass, it's 540

The volume is length*width*height

So it's 5*6*4=120 cm^3

540/120=4.5 g/cm^3

It's cm^3 because volume is in cubic centimeters.

Describe the difference between an endothermic reaction and an exothermic reaction.

Answers

Answer:

In simple terms, the endothermic reactions absorb energy from the surrounding that is in the form of heat. On the other hand, an exothermic reaction releases energy into the surrounding of the system.

Please hurry and help please don’t send a link

Answers

Answer:

A for 1 and 4 B for 2 and 3 ..........

Answer:

1)A 2)B 3)B 4)A

Explanation:

An autotroph is a producer (plant) and a heterotroph is a consumer. Good luck!

A word used to describe if one substance can be dissolved in another
1. aqueous
2. solvent
3. solution
4. concentration
5. solute
6. soluble
7. cohesion
8. solvation
9. polarity
10. dilution
11. adhesion
12. solubility

Answers

12) Solubility
Solubility is the ability to be dissolved, especially in water.
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