Chemistry S1 Exam Review set 2

Front

What is the chemical symbol for sulfuric acid?

Back

H₂SO₄

Front

How many atoms are contained in each molecule of sulfuric acid?

Back

7

Front

What is a potential sign of chemical change?

Back

Release of gas, Change of color, Production of gas (Evaporation of water is NOT a sign of chemical change).

Front

Which of the following is an element: Steel, Bronze, Iron, Brass?

Back

Iron

Front

What is the ultimate origin of natural explanations according to a biblical scientist?

Back

God

Front

What term describes the process of identifying a problem or question, forming a hypothesis, testing it, and evaluating the results?

Back

Scientific inquiry

Front

What is the definition of an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a chemical change?

Back

A process where substances combine or break apart to form new substances.

Front

What is the difference between a hypothesis and a theory?

Back

A hypothesis is a testable prediction, while a theory is a well-substantiated explanation of an aspect of the natural world.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.