1st Semester Review (PS)

Front

What is the scientific method?

Back

A systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge. It typically involves steps such as observation, questioning, forming a hypothesis, conducting experiments, and drawing conclusions.

Front

Which step is not part of the scientific method?

Back

Design

Front

What is decomposition in chemistry?

Back

A type of chemical reaction where one reactant breaks down into two or more products.

Front

How many neutrons does calcium have?

Back

20

Front

What are prefixes used for in chemistry?

Back

Prefixes are used to indicate the number of atoms of each element in a compound, especially in compounds formed from non-metals.

Front

What is the boiling point of a substance?

Back

The temperature at which a liquid turns into a gas.

Front

What is the difference between a reactant and a product?

Back

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

Front

What is a hypothesis?

Back

A proposed explanation for a phenomenon, which can be tested through experimentation.

Front

What is the role of observation in the scientific method?

Back

Observation is the initial step that involves gathering information and noticing phenomena that lead to questions.

Front

What is a chemical reaction?

Back

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