Chemistry Semester 1 Exam Study Guide PART 1

Front

What is the role of energy in chemical reactions?

Back

Energy is transferred during chemical reactions, which can either absorb or release energy.

Front

What is not a part of the scientific method?

Back

Proving is not a part of the scientific method; the scientific method involves observing, hypothesizing, experimenting, and analyzing.

Front

What type of tasks are analytical chemists typically assigned?

Back

Analytical chemists are typically assigned tasks such as determining the composition of substances, like the amount of copper or lead in samples.

Front

Which term does not fit with the others: solid, reactant, gas, liquid?

Back

Reactant does not fit with the others as it refers to a substance that undergoes a chemical change, while solid, gas, and liquid refer to states of matter.

Front

Can elements be separated into simpler substances by chemical reactions?

Back

No, elements cannot be separated into simpler substances by chemical reactions; they are the simplest form of matter.

Front

What is a chemical reaction?

Back

A chemical reaction is a process that involves the rearrangement of the molecular or ionic structure of a substance.

Front

What is the difference between a reactant and a product?

Back

A reactant is a substance that undergoes change in a chemical reaction, while a product is a substance that is formed as a result of the reaction.

Front

What is the scientific method?

Back

The scientific method is a systematic approach to inquiry that involves making observations, forming hypotheses, conducting experiments, and drawing conclusions.

Front

What is an example of a physical change?

Back

An example of a physical change is melting ice into water, where the substance changes state but not its chemical composition.

Front

What is an example of a chemical change?

Back

An example of a chemical change is rust forming on iron, which involves a chemical reaction with oxygen.