Chapter 3

Question 1

chemical bond

Answer 1

the combining of atoms to form molecules or compounds

Question 2

ionic compound

Answer 2

a compound made of oppositely charged ions

Question 3

covalent compound

Answer 3

a chemical compound formed by the sharing of electrons

Question 4

acid

Answer 4

any compound that when dissolved in water increases the # of hydronium ions

Question 5

indicator

Answer 5

a compound that changes color based on pH

Question 6

base

Answer 6

any compound that increses the # of hydroxide ions when dissolved in water

Question 7

neutralization reaction

Answer 7

the reaction of an acid and a base to form a neutral solution of water and a salt

Question 8

pH

Answer 8

a value that is used to express the acidity or basicity of a substance

Question 9

salt

Answer 9

an ionic compound that forms when a metal atom replaces the hydrogen of an acid

Question 10

organic compound

Answer 10

a covalently bonded compound that contains carbon

Question 11

hydrocarbon

Answer 11

an organic compound that contains only hydrogen and carbon

Question 12

carbohydrate

Answer 12

a class of energy giving nutrients that includes sugars, starches, and fiber; composed of one or more simple sugars bonded together

Question 13

lipid

Answer 13

a type of biochemical that does not dissolve well in water; fats and steroids are lipids

Question 14

protein

Answer 14

a molecule that is made up of amino acids and that is needed to build and repair body structures and to regulate processes in the body

Question 15

nucleic acid

Answer 15

a molecule made up of subunits called nucleotides