Answers
Answer:
Explanation:
NaNO3
Just do a double displacement reaction, this is what you get (plus water)
The reaction shifts to the left, and the concentrations of SO2(g) and O2(g) increase.
Simply put, the system will seek to stay at equilibrium by shifting to compensate for change.
Complicatedly put, consider the fact that K (the equilibrium constant) is the concentration of products raised to their coefficients over the concentration of the reactants raised to their coefficients. If we write an expression for K, we get this:
[tex]K=\frac{[SO_3]^2}{[SO_2]^2[O_2]}[/tex]
If we assume that, at equilibrium, all of the substances have a concentration of 1 molar, we get that
[tex]K=\frac{[1]^2}{[1]^2[1]}=1[/tex]
If we increase SO3, K will increase. This means the system has now been removed from equilibrium. For example, if you add another mole of SO3, you get
[tex]Q=\frac{[2]^2}{[1]^2[1]}=4[/tex]
(Q is just K, but not at equilibrium.)
Since the system wants to stay at equilibrium, it will work to restore equilibrium. The only way to do this is to increase the value of the reactants (the bottom numbers), meaning the reaction will shift to the left. Worded differently, when Q>K, the reaction will shift left.
Related Questions
Thermal energy always moves from _ _ _ _ to _ _ _ energy.
Fill in the blanks.
Answers
Thermal energy always moves from higher energy area to lower energy area over a temperature gradient.
What is thermal energy?Thermal energy is a form of energy by virtue of temperature of a body. As the temperature of a body increase its thermal energy increases. Thermal energy or heat energy transfers though medium and vacuum from higher energy area to lower energy area.
Heat transfer can be through conduction in solids, convection in fluids and by radiation through space. In conduction, the thermal energy easily transfers through a chain of close packed molecules.
In all these mode of heat transfer heat energy is flowing from a hotter region to a colder region.
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BRAINLIEST!!HELP PLEASEEEE2. Use the following chemical equation to answer the question.
4K(s) + O2(g) → 2 K20 (s)
If a staff member at a laboratory has 12. 0 grams of potassium metal, what is the
theoretical yield of potassium oxide (K2O) that the scientist could potentially
produce from the reaction with oxygen gas?
Answers
If a laboratory employee has 12.0 grammes of potassium metal, the theoretical yield of potassium oxide that even the scientist may theoretically make from the reaction with oxygen gas is 14.5 gram of K2O.
In chemistry, yield, also known as reaction yield, is a measurement of the number of moles of a product created in ratio to the reactant consumed in a chemical reaction, generally represented as a percentage. Before performing chemical reactions, it is necessary to know how many product will be produced with certain reactant quantities. This is referring to the theoretical yield.
This approach is useful for calculating the theoretical yield of such a chemical process. The yield of a reaction represents how much product is generated by that reaction. The theoretical yield is the amount of product predicted by stoichiometry, whereas the actual yield is the amount produced.
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In a titration experiment, a 12.5 mL sample of 1.75 x 10^-2 M Ba(OH) 2 just neutralized 14.5 mL of HNO 3 solution. Calculate the molarity of the HNO 3 solution.
Answers
The number of moles must be equal, the ratio of the molarity of each must be equal to the ratio of the volumes used.
What is experiment?An experiment is a procedure or set of procedures used to test a hypothesis or explore a cause and effect relationship. It is a scientific method of investigation in which the investigator manipulates one or more independent variables and measures the subsequent effect on one or more dependent variables. Experiments are conducted to answer questions, test theories, and gain insight into cause-and-effect relationships.
The molarity of the HNO 3 solution can be calculated using the equation:
Molarity of HNO3 = (volume of HNO3 * molarity of Ba(OH)2) / volume of Ba(OH)2
Molarity of HNO3 = (14.5 mL * 1.75 x 10^-2 M) / 12.5 mL
Molarity of HNO3 = 1.4 x 10^-2 M
This equation works because the number of moles of HNO3 neutralized by the Ba(OH)2 must be equal to the number of moles of Ba(OH)2 used. The number of moles of each can be determined by multiplying the molarity of each by the volume used, and since the number of moles must be equal
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Equations and inequalities
LITERAL EQUATIONS
Given the formula shown here, make r the subject of the formula.
Α = 2πχh + 2πη
This equation has the following restrictions:
h = -1
INSTRUCTION: Type pi for
Answer:
Type here to search given the formula shown here make r the subject of the formula A=pi rh+2pi r
Answers
Using Tables 1 to 3, what pattern do you observe in terms of the phase, number of carbon atoms, structure and boiling point of the alkanes, alkenes, and alkynes? Explain the patterns you observe.
Answers
As the number of carbon atoms increases the phase changes from gas to liquid,length of chain increases and also the boiling point increases in case of alkanes, alkenes, and alkynes.
What is an atom?An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.
The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.
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What kind of organic compound is ethanoic acid?
Answers
Answer:
Acetic acid , systematically named ethanoic acid , is a colourless liquid organic compound with the chemical formula CH3COOH.
Explanation:
how do the three experiments compare click on all the statements that are true about the comparisons
Answers
A group of students decided to test some parameters of gases using a balloon. The students filled two balloons to the same volume. One balloon was placed in a freezer and the other was left at room temperature. The balloons were left and checked after three hours.
Student A claimed that the balloon in the freezer would be the same size as the balloon at room temperature after the three hours were up.
Student B claimed that the balloon in the freezer would be larger than the balloon at room temperature after three hours.
Student C claimed that the balloon in the freezer would be smaller than the balloon at room temperature after three hours.
Which student's claim is correct? Explain your reasoning!
Answers
Answer:
Student C.
Explanation:
At higher temperatures, the particles move faster and collide with each other more frequently, which causes the gas to occupy a larger volume. At lower temperatures, the particles move slower and collide less frequently, which causes the gas to occupy a smaller volume.
When the balloon is placed in the freezer, the temperature inside the balloon will also decrease, causing the gas particles to slow down and collide less frequently, which leads to a decrease in the volume of the gas, hence the balloon will shrink or contract. On the other hand, the room temperature balloon will experience no significant change in the temperature and the gas particles inside the balloon will remain at the same level of activity, causing the balloon to retain the same volume.
(05.04 LC)
How many moles of sulfuric acid (H₂SO4) are needed to react completely with 6.8 moles of lithium hydroxide (LiOH)?
2LIOH + H₂SO4 → Li2SO4 + 2H₂O
O 3.4 mol H₂SO4
O 6.8 mol H₂SO4
O 10.2 mol H₂SO4
O 13.6 mol H₂SO4
Answers
3.4 mole of H₂SO₄ are needed to react completely with 6.8 moles of lithium hydroxide (LiOH).
Is lithium hydroxide harmful to humans?When breathed in, lithium hydroxide monohydrate can have an impact on you. Lithium Hydroxide Monohydrate is a HIGHLY CORROSIVE CHEMICAL, and contact with it can cause serious skin irritation, eye damage, and burning. Lithium Hydroxide Monohydrate inhaled can irritate the throat and nose.
From the stichiometry of the reaction: 2 LiOH + H2SO4 → Li2SO4 + 2H2O
It is evident that 2.0 moles of LiOH reacts with 1.0 mole of H2SO4 to produce 1.0 mole of Li2SO4 and 2.0 moles of H2O.
Using cross multiplication:
1.0 mole of H2SO4 reacts completely with → 2.0 moles of LiOH
x mole of H2SO4 are needed to react completely with → 6.8 moles of LiOH
since number of moles of H2SO4 = ( 1.0 x 6.8 ) / (2.0) = 3.4 mole of H2SO4.
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What is the molarity of a solution of K3PO4 made by mixing 0.26 mol of potassium
phosphate with water up to 0.35L?
Answers
Given :
0.26 mole of [tex]K_3PO_4[/tex] and 0.35 L of water.
To Find :
The molarity of a solution of [tex]K_3PO_4[/tex] made by mixing 0.26 mole of potassium
phosphate with water up to 0.35 L .
Solution :
We know, molarity is given by :
[tex]M = \dfrac{number \ of \ moles }{Volume \ in \ Liter}\\\\M = \dfrac{0.26}{0.35}\ M\\\\M = 0.743 \ M[/tex]
Therefore, the molarity of [tex]K_3PO_4[/tex] solution is 0.743 M.
Calculate the density mass= 54.2 volume= 78.1
Answers
Answer:
0.693 (you can round it up if you want to)
Explanation:
Density= mass ÷ volume
54.2 ÷ 78.1 = 0.693
I hope this helped☺
If the pressure of a 2.3 mole sample of gas is initially 1.5 atm, the volume is
1.0 L and the temperature is 25°C, what would the new volume be if moles
are increased to 3.4 and the pressure is changed to 6.0 atm and 100.0°C?
267 L
0.46
0.500 L
300 L
Answers
300 L
I hope this helps you
Human population growth in 2018 was 1. 7%. If this rate of growth remains constant, in what year will the human population double?
Answers
Human population growth will Double time and that will be 41.17 years
Human growth can be defined as;
The growth and development are positively influenced by factors, like parental health and genetic composition.
Population growth is the increase in the number of humans on Earth.
Human population has grown exponentially over the past century. It has done so largely by producing large amounts of food, and learning how to control disease.
We can find what year the human population would double using the rule of 70. This is given as;
Double time = 70 / rate(r)
Double time = ?
Rate = 1.7%
Inserting into the equation;
Double time = 70 / 1.7
Double time =41.17 years
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What is the definition of meter in biology?
Answers
The definition of the meter in biology is that the meter scale is used to measure the length. it is first unit of the international system of the units.
The meter is the first unit of the length in the international system of the units. currently the definition of the meter is : The meter can be defined as the length of the path that is travelled by the light in the vacuum during the time interval of 1 / 2999792458 second. The symbol of the meter is m.
The meter scale is used to measure the length or the distance between the two points.
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Gaseous ammonia chemically reacts with oxygen O2 gas to produce nitrogen monoxide gas and water vapor. Calculate the moles of water produced by the reaction of 0.90mol of ammonia. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits.
Answers
1.08 moles of water () produced by the reaction of 0.90mol of oxygen.
Explanation:
Moles of oxygen given = 0.90 mole
Moles of water are to be calculated.
Step 1 : Write the chemical reaction and balance it.
5 mole of reacts with 4 mole of to give 4 moles of NO and 6 moles of .
Step 2 : Calculate moles of water () utilising mole ratio.
The coefficient of is 6 and coefficient of is 5, So mole ratio of to is 6 : 5
Moles of = 0.90 × 6 (moles of ) ÷ 5 (moles of )
Moles of = 1.08 moles
1.08 moles of is produced by the reaction of 0.90 mole oxygen ()
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What are true about water changing states?
Answers
Answer:
The last one is true.
Explain how observations differ from inferences?
Answers
how many grams of C are in 500g or NaHCO3
Answers
Answer: 71.43g
Explanation: The RMM of NaHCO3 is
23+1+12+16(3)=84.
There is one carbon in NaHCO3 thus there are 1×12g of C in NaHCO3.
Thus
85gNaHCO3-----12g C
500gNaHCO3---- xgram
(500×12)÷84= 71.43
Draw the structure for the product of the reaction between 2-butene and hydroiodic acid, HI.
Answers
The product of the reaction between 2-butene and hydroiodic acid (HI) is 2-iodobutane.
The reaction mechanism involves a nucleophilic substitution, where the iodine atom in HI acts as the nucleophile and attacks the carbon atom in the double bond of 2-butene. This results in the formation of a carbocation intermediate, which then undergoes a rearrangement to form 2-iodobutane. The overall reaction can be represented as follows: 2-butene + HI → 2-iodobutane + H2.Nucleophilic substitution is a type of chemical reaction in which a nucleophile (a molecule or ion with a lone pair of electrons) attacks an electron deficient species, known as an electrophile, to form a new chemical bond. In the process, the electrophile's original electron pair is replaced by the nucleophile. Nucleophilic substitution reactions can occur in a variety of ways, such as S N 1, S N 2, and S Ni (where i = 1, 2, or any other number).
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For each of the following balanced chemical equations, write all possible mole ratios: a. 2Ca + O2 ⎯→ 2CaO b. Mg + 2HF ⎯→ MgF2 + H2
Answers
The mole ratio of the reactants and products is
a. 2 : 1 : 2
b. 1: 2:1:1
The ratio of the mole quantities of any two compounds present in a balanced chemical reaction is known as the mole ratio. A comparison of the ratios of the molecules required to accomplish the reaction is given by the balancing chemical equation. The coefficients of each species in the reactants and products are used to calculate the mole ratio of the reactants and products. The mole ratio of the reactants and products, as demonstrated by the equation in the question, is 2: 1: 2 and 1:2:1:1 respectively.
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__ H₂ + ___ O₂ → ____H₂O
Answers
This is the chemical formula for water. Hope this helps.
Answer:
2H2+O2=2H2o
Explanation:
We have 2 hydrogens, 2 oxygens on the left-hand side.
But only 1 O on the right-hand side.
let's place a 2 before H2O (water)
Do you drink H2O every day?
But balancing the O unbalanced H
So the balanced chemical equation will look like this:
2H2O+O2=2H2O
When water is dissolving the NaCl, the positive (hydrogen) side of the water molecule pulls off the ________________ ___________ ions.
Group of answer choices
A. negative chlorine
B. positive sodium
C. negative sodium
D. positive chlorine
Answers
Answer:
A negative chlorine
Explanation:
B and D r wrong coz positive doesn't attract positive.
for C , sodium doesn't have a negative valency.
The half-life of cobalt-60 is 5.20 yr. How many milligrams of a 1.000-mg sample remain after 7.55 years
Answers
Cobalt-60 has a half-life of 5.20 years, which means that half the sample will be present after that time.
What is cobalt?The chemical element cobalt has the atomic number 27 and the symbol Co. It is a naturally occurring hard, glossy, silver-gray metal that is found in rocks and soils. Cobalt is magnetic when it is pure, and it can be used to make alloys, magnets, and colours. Additionally, it is employed in the manufacture of batteries, catalysis, and pharmaceuticals. The production of vitamins and proteins depends on cobalt, a trace mineral that is crucial for maintaining human health.
After 7.55 years, about 0.78 of the original 1.000 mg sample will remain.
Therefore, 0.78 x 1.000 mg = 0.780 mg will remain after 7.55 years.
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Which term is best described as an organic compound containing a carbonyl group bound to two hydrogen atoms or to a hydrogen atom and an alkyl substituent
Answers
A carbonyl group is bound to hydrogen bond or to a hydrogen ion and an alkoxy substituent in an organic compound known as an aldehyde.
What is Aldehyde?Aldehyde is an organic compound containing a functional group with the structure −CHO, in which a carbon atom is double-bonded to an oxygen atom and single-bonded to a hydrogen atom. Aldehydes are the simplest type of carbonyl group and the most common type of organic compound. Aldehydes are found in many natural and manufactured products, including perfumes and food products. The most common example of a natural aldehyde is formaldehyde, which is produced by plants and animals.
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Jaiden Drives for 800 km at an average speed of 120 km/h. How long was her journey?
Answers
Answer:
i think her journey was 680 km/h long
Answer:
6.67 hours
Explanation:
(800 km) / (120 km/hr) = 6.67 hours
What is the energy of an electromagnetic wave with a electromagnetic wave with a frequency of 3 * 10 Hz ?
Answers
Answer:
[tex]E=1.989*10^{-32}J[/tex]
Explanation:
From the question we are told that:
Frequency [tex]f=3 * 10 Hz[/tex]
Generally the equation for Energy of an electromagnetic wave is mathematically given by
[tex]E=hf[/tex]
Where
h=Planck's constant
[tex]h=6.62607015 * 10^{-34}[/tex]
Therefore
[tex]E=6.62607015 * 10^{-34}*3 * 10[/tex]
[tex]E=1.989*10^{-32}J[/tex]
A 36-gram sample of water has an initial temperature of 220C. After the sample absorbs 1200 joules of heat energy, the final temperature of the sample is
Answers
The specific heat of water is equal to 1200 joules / (36 grams × (240C - 220C)) = 16.7 joules/gram・°C.
What is temperature?Temperature is a measure of the average kinetic energy of the particles in a material. It is measured in degrees on the Celsius, Kelvin and Fahrenheit scales. Temperature is an important factor in many physical and chemical processes, such as the rate of chemical reactions, the speed of sound, the intensity of light and the properties of gases.
The specific heat of water, c, is calculated using the equation c = Q / (m × ΔT), where Q is the amount of heat energy, m is the mass of the sample and ΔT is the change in temperature.
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Place the following molecules in order of decreasing bond angle: NH3, CO2, CCl4, OF2
O CO2 > CCl4 > NH3 > OF2
O NH3 > CO2 > CCl4 > OF2
O CO2 > CCl4 > OF2 > NH3
O CCl4 > CO2 > OF2 > NH3
O OF2 > NH3 > CCl4 > CO2
Answers
The order of decreasing bond angle for the given molecules is :
O OF2 > NH3 > CCl4 > CO2
In molecules with a central atom, the bond angle is determined by the electron pair-bond pair repulsion. The bond angle decreases as the number of electron pair-bond pair increases. In OF2 the central atom is O, and it has 2 lone pairs and 2 single bonds, the bond angle is expected to be smaller than in the other molecules.In NH3, the central atom is N, and it has 3 single bonds and 1 lone pair, the bond angle is expected to be larger than in OF2 but smaller than in CO2 and CCl4. In CO2 and CCl4, the central atoms are C and Cl respectively, and they have 4 single bonds and no lone pairs, the bond angle is expected to be larger than in NH3, but smaller than in OF2.
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PLS HELP ME WITH THIS QUESTION answer all blanks
Answers
The balanced chemical equation is N₂ + 3 H₂[tex]\rightarrow[/tex] 2 NH₃ which gives the formation of ammonia.
What is chemical equation?
Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.
The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.
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Question 4
3 pts
Which if the following elements will not reach an octet when in a bond?
Calcium
O Lithium
Magnesium
O Carbon
Ouestion 5
Answers
Lithium has a valence of 1, so it will not usually reach an octet in a bond. It tends to form ionic bonds, in which there is only one electron transfer, rather than two or more which would be required to reach an octet.
What is Lithium?Lithium is a soft, silver-white metal that is the lightest of all alkali metals. It is a key component in many batteries, and is also used in a variety of other applications. It has a low reactivity, and is relatively stable when exposed to air and water. In its elemental form, Lithium is a highly flammable, corrosive metal that is rarely found in its pure form in nature. It can be found in minerals such as lepidolite and spodumene, and is commonly mined from salt flats and brine pools.
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