Property Changes in Chemical Reactions Flashcardizz

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction. The total mass of reactants equals the total mass of products.

Front

How can mass and volume help identify a substance?

Back

Mass and volume can be used to calculate density, which is unique to each substance and helps in identification.

Front

What are the two types of energy changes in chemical reactions?

Back

Chemical reactions can either release more energy than they absorb (exothermic) or absorb more energy than they release (endothermic).

Front

What effect does adding energy have on a chemical reaction?

Back

Adding energy can change the rate of a chemical reaction and may alter the reaction itself.

Front

What happens to the mass of substances during a chemical reaction?

Back

The mass of substances remains constant during a chemical reaction.

Front

What is density?

Back

Density is the mass of a substance divided by its volume, often expressed in grams per cubic centimeter (g/cm³).

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases energy, usually in the form of heat.

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs energy from its surroundings.

Front

What is a decomposition reaction?

Back

A decomposition reaction is a type of chemical reaction where one compound breaks down into two or more simpler substances.

Front

What is a chemical reaction?

Back

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.