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zhenek [66]
3 years ago
9

A(n________ is a substance that is made up of a single kind of atom

Chemistry
1 answer:
Fofino [41]3 years ago
8 0
I think the answer is a molecule
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The water-gas shift reaction CO(g)+H2O(g)⇌CO2(g)+H2(g) is used industrially to produce hydrogen. The reaction enthalpy is ΔH∘=−4
Pani-rosa [81]

Answer:

The answers are in the explanation

Explanation:

A. For the reaction:

CO(g) + H₂O(g) ⇌ CO₂(g) + H₂(g);  ΔH°=−41kJ.

As the reaction is exothermic ( ΔH°<0), you need to use low temperature to increase the equilibrium yield of hydrogen -LeChatelier's principle-.

We would use <em>low </em>temperature. For an <em>exothermic </em>reaction such as this, <em>decreasing </em>temperature increases the value of K and the amount of products at equilibrium.

B.

c. No. We cannot increase the equilibrium yield of hydrogen by controlling the pressure of this reaction.

It is possible to increase the equilibrium yield of reaction by controlling the amount of reactants added. As reactants and products are gases, the pressure of the reaction will not change the amount of reactants or products in the equilibrium.

I hope it helps!

8 0
3 years ago
Which substance is an electrolyte? <br> a.ch3oh <br> b.c6h12o6 <br> c.h2o <br> d.koh?
Travka [436]
The answer is D. KOH (potassium hydroxide)
5 0
3 years ago
Define and describe each of the following forms of energy and then classify each as either: potential energy, kinetic energy, or
TiliK225 [7]

Potential energy:   It is an energy stored in an object due to its position.

Chemical energy: It is an energy stored in a bonds of a chemical compound and this energy is released during the reaction in the form of heat.

Elastic energy: It is a stored potential energy in an elastic object when subjected to any deformation or change in shape.

Gravitational energy : It is an energy possessed by an object due its position in a gravitational field.

Electric energy: Energy due to flow of charged particles. It is a type of a stored potential energy due to relative position of charged particle .

Nuclear energy  : it is an energy stored in a nucleus of an atom. This energy kept the particles present inside the nucleus binded together.

Static electricity: It is  an electricity which arises due to presence of imbalance in charge within or on the surface of the material.

Transfer of some quantity of energy:

Heat energy: Transfer or flow of energy from one object to another in form of heat. This transfer is due to difference in temperature of two objects.

Electromagnetic energy:  It is an form of energy emitted by the magnetic field and electric field vibrating perpendicular to each other while propagation of the electromagnetic wave. Energy transfer takes place in from of electromagnetic wave.

Sound energy  ; it is the energy produced by the vibration of sound waves. the energy transferred from one substance to another in form of sound wave.

Kinetic energy: Its an energy possessed by an object due its motion.

Movement of mass  : It is an energy which leads to movement of the mass of an object.

Thermal work : It is an energy posses by the body due to movement of the particles.

3 0
3 years ago
Read 2 more answers
Common oxidation states of mercury are 1 and 2. In the 1 oxidation state, mercury forms a diatomic cation. In the 2 oxidation st
kicyunya [14]
The question is asking to calculate and give the formulas for the mercury bromide, base on my research, the answer would be <span>HgBr, I hope you are satisfied with my answer and feel free to ask for more if you have questions and further clarifications </span>
6 0
4 years ago
The mass of an object on the Moon would have _______________ mass if it was moved to Earth.
GREYUIT [131]

Answer:

I think its A. Because space has no gravity..

Explanation:

6 0
3 years ago
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