Science 8 Chapter 15

Question 1

A chemical change resulting from a collision between atoms or molecules

Accepted Answer

Chemical Reaction

Question 2

“Master program” of the cell. Contains the information of the cell. Also known as deoxyribonucleic acid.

Accepted Answer

DNA

Question 3

Substance produced by the reaction

Accepted Answer

Product

Question 4

A scale that indirectly represents the level of acidity or basic levels of a substance

Accepted Answer

Ph scale

Question 5

An atom losing electrons is _________________.

Accepted Answer

Oxidized

Question 6

The process in which the body produces and uses energy from food.

Accepted Answer

Metabolism

Question 7

Substances that are neither acid or basic

Accepted Answer

Neutral

Question 8

Any substance that produces hydroxide anions in an aqueous solution

Accepted Answer

Base

Question 9

Any substance that produces hydrogen cations when dissolved in an aqueous solution

Accepted Answer

Acid

Question 10

An important six-carbon sugar found in animals and plants

Accepted Answer

Glucose

Question 11

An expression that uses chemical symbols to represent a chemical reaction

Accepted Answer

Chemical equation

Question 12

A chemical equation that has the same number of atoms of each element on each side of the equation

Accepted Answer

Balanced

Question 13

An atom gaining electrons is ____________________.

Accepted Answer

Reduced

Question 14

Molecules used to build and maintain living cells

Accepted Answer

Proteins

Question 15

Compounds that produce most of the energy for living things

Accepted Answer

Carbohydrates

Question 16

The substance that undergoes a chemical reaction

Accepted Answer

Reactant

Question 17

The study of the relationship between chemical reactions and the laws of thermodynamics

Accepted Answer

Chemical thermodynamics

Question 18

The study of compounds containing carbon

Accepted Answer

Organic Chemistry

Questions 18