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What effect does the addition of heat usually have on the rate of a chemical reaction?
The addition of heat stimulates the molecules in the reaction. Because they will move faster, the reaction will speed up.
What is the difference between endothermic and exothermic?
An endothermic reaction absorbs heat. It cannot proceed without the addition of heat. An exothermic reaction releases heat. Since heat causes chemical reactions to go faster, an exothermic reaction can "feed on itself" and get out of control, releasing damaging amounts of heat and, if proceeding in a closed container, causing an explosion.
What chemical leavening agent reacts with both moisture and heat to create carbon dioxide gas?
Double-acting baking powder. The first reaction occurs in the presence of moisture, and the second reaction occurs when heat is applied.
What is the definition of endotherm?
Designating, or pert. to, a reaction which occurs with absorption of heat; formed by such a reaction; as, an endothermic substance; -- opposed to exothermic.
What is the decomposition reaction occurs in the presence of heat,?
Thermal decomposition is a chemical reaction where a single substance breaks into two or more simple substances when heated. The reaction is usually endothermic because heat is required to break the bonds present in the substance.
What effect does the addition of heat usually have on the rate of a chemical reaction?
The addition of heat stimulates the molecules in the reaction. Because they will move faster, the reaction will speed up.
How do particles heat up?
Whenever direct heat is given to any kind of particles/materials, an exothermic reaction occurs. When an exothermic reaction occurs, heat is released. This is what causes the particles to heat up.
What is the type of heat reaction which occurs when heat is given off by the reaction?
Heat is released during an exothermic reaction.
What chemical change occurs so that heat is given off?
this occurs in an exothermic reaction
What is the difference between endothermic and exothermic?
An endothermic reaction absorbs heat. It cannot proceed without the addition of heat. An exothermic reaction releases heat. Since heat causes chemical reactions to go faster, an exothermic reaction can "feed on itself" and get out of control, releasing damaging amounts of heat and, if proceeding in a closed container, causing an explosion.
What type of reaction occurs when a compound is broken up by heat?
Thermal decomposition
What type of reaction occurs when a compound is broken up heat?
Thermal decomposition
What kind of reaction is when you light a match?
its a chemical reaction. in addition to heat and light, a new gaseous substances are formed
What chemical leavening agent reacts with both moisture and heat to create carbon dioxide gas?
Double-acting baking powder. The first reaction occurs in the presence of moisture, and the second reaction occurs when heat is applied.
What principle of chemistry states that if a chemical reaction occurs in stages then the heat of each step will equal the total heat of the reaction as if it had occurred in one step?
hess's law
What happens to the heat when an exergonic reaction occurs in living cells?
It's being released.
A reaction occurs when a substance reacts with oxygen to produce energy in the form of heat and light?
This is an oxidation reaction (combustion, burning).
