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Question 1

What is the study of matter and the changes it undergoes?

Answer 1

Chemistry

Question 2

What is a substance made up of only one type of atom?

Answer 2

Element

Question 3

What is the process of combining two or more substances to form a new substance with different properties?

Answer 3

Chemical reaction

Question 4

What do we call a substance that speeds up a chemical reaction without being consumed in the process?

Answer 4

Catalyst

Question 5

What is the smallest unit of an element that retains its chemical properties?

Answer 5

Atom

Question 6

What is the name of the positively charged particle found in the nucleus of an atom?

Answer 6

Proton

Question 7

What do we call a negatively charged particle that orbits the nucleus of an atom?

Answer 7

Electron

Question 8

What is the central part of an atom, containing protons and neutrons?

Answer 8

Nucleus

Question 8

What is the term for the number of protons in the nucleus of an atom, which determines the element?

Answer 8

Atomic number

Question 9

What is the process by which a liquid turns into a gas?

Answer 9

Evaporation

Question 10

: What do we call a substance that can dissolve in a solvent to form a solution?

Answer 10

Solute

Question 11

What is a substance that dissolves the solute in a solution?

Answer 11

Solvent

Question 12

What is the process by which a solid turns directly into a gas without becoming a liquid?

Answer 12

Sublimation

Question 13

What do we call a mixture where the components are evenly distributed?

Answer 13

Homogeneous mixture

Question 14

What do we call a mixture where the components are not evenly distributed?

Answer 14

Heterogeneous mixture