Chapter 3 Section #2

16

Categorize each term as either a physical or chemical change.

burn
rust
rot
freeze
explode
oxidize
tarnish
condense
grind
ferment
crush
boil
crumple
corrode
melt
vaporize

Physical Change
Chemical Change

10

For each item in Column A, write the letter of the matching item in Column B.

Draggable item		Corresponding Item
Shows the relationship between the reactants and products in a chemical reaction		products
The starting substances in a chemical reaction		chemical change
States that mass is neither created nor destroyed in any process		chemical equation
A chemical reaction that involves one or more substances changing into new substances		law of conservation of mass
The new substances that are formed in a chemical reaction		reactants

1

In a laboratory, 178.8 g of water is separated into hydrogen gas and oxygen gas. The hydrogen gas has a mass of 20.0 g. What is the mass of the oxygen gas produced? Chemical equation H2O --> H2 and O2

2

As temperature and __________ change, most substances undergo a change from one state (or phase) to another.

2

Melting and formation of a gas are both __________________ changes and phase changes.

10

Which terms below are used to describe phase changes in matter.

2

The new substances formed in the reaction have different ____________________ and different properties from the substances present before the reaction occurred.

2

In chemical reactions, the starting substances are called _______________________, and the new substances formed are called products.

18

Which of the following terms represent terms referring to chemical reactions

2

The law of conservation of mass states that mass is neither created or _________ during a chemical reaction--it is conserved.

2

According to the law of conservation of mass, mass of the reactants equals the mass of the products.

2

French scientist Antoine ________________ (1743-1794) was one of the first to use ana analytical balance to monitor chemical reactions.

2

Chapter 3 Section #2

Categorize each term as either a physical or chemical change.

For each item in Column A, write the letter of the matching item in Column B.

In a laboratory, 178.8 g of water is separated into hydrogen gas and oxygen gas. The hydrogen gas has a mass of 20.0 g. What is the mass of the oxygen gas produced? Chemical equation H2O --> H2 and O2

As temperature and __________ change, most substances undergo a change from one state (or phase) to another.

Melting and formation of a gas are both __________________ changes and phase changes.

Which terms below are used to describe phase changes in matter.

The new substances formed in the reaction have different ____________________ and different properties from the substances present before the reaction occurred.

In chemical reactions, the starting substances are called _______________________, and the new substances formed are called products.

Which of the following terms represent terms referring to chemical reactions

The law of conservation of mass states that mass is neither created or _________ during a chemical reaction--it is conserved.

According to the law of conservation of mass, mass of the reactants equals the mass of the products.

French scientist Antoine ________________ (1743-1794) was one of the first to use ana analytical balance to monitor chemical reactions.

The color change and production of a ____ are indicators of a chemical reaction.

Categorize each term as either a physical or chemical change.

For each item in Column A, write the letter of the matching item in Column B.

In a laboratory, 178.8 g of water is separated into hydrogen gas and oxygen gas. The hydrogen gas has a mass of 20.0 g. What is the mass of the oxygen gas produced? Chemical equation H2O --> H2 and O2

As temperature and __________ change, most substances undergo a change from one state (or phase) to another.

Melting and formation of a gas are both __________________ changes and phase changes.

Which terms below are used to describe phase changes in matter.

The new substances formed in the reaction have different ____________________ and different properties from the substances present before the reaction occurred.

In chemical reactions, the starting substances are called _______________________, and the new substances formed are called products.

Which of the following terms represent terms referring to chemical reactions

The law of conservation of mass states that mass is neither created or _________ during a chemical reaction--it is conserved.

According to the law of conservation of mass, mass of the reactants equals the mass of the products.

French scientist Antoine ________________ (1743-1794) was one of the first to use ana analytical balance to monitor chemical reactions.

The color change and production of a ____ are indicators of a chemical reaction.