Chapter 3 Section #2
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Last updated over 3 years ago
13 questions
16
Categorize each term as either a physical or chemical change.
Categorize each term as either a physical or chemical change.
- rot
- corrode
- tarnish
- crush
- rust
- ferment
- burn
- condense
- grind
- melt
- vaporize
- explode
- oxidize
- crumple
- boil
- freeze
- Physical Change
- Chemical Change
10
For each item in Column A, write the letter of the matching item in Column B.
For each item in Column A, write the letter of the matching item in Column B.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
The new substances that are formed in a chemical reaction | arrow_right_alt | products |
A chemical reaction that involves one or more substances changing into new substances | arrow_right_alt | chemical change |
States that mass is neither created nor destroyed in any process | arrow_right_alt | chemical equation |
The starting substances in a chemical reaction | arrow_right_alt | law of conservation of mass |
Shows the relationship between the reactants and products in a chemical reaction | arrow_right_alt | 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
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.
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.
Melting and formation of a gas are both __________________ changes and phase changes.
10
Which terms below are used to describe phase changes in matter.
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.
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.
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
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.
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.
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.
French scientist Antoine ________________ (1743-1794) was one of the first to use ana analytical balance to monitor chemical reactions.
2
The color change and production of a ____ are indicators of a chemical reaction.
The color change and production of a ____ are indicators of a chemical reaction.