Chapter 3 Vocabulary

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 increases the number of hydronium ions when dissolved in water

Question 5

indicator

Answer 5

a compound that can reversibly change color depending on conditions such as pH

Question 6

base

Answer 6

any compound that increases the number of hydroxide ions when dissolved in water

Question 7

neutralization reaction

Answer 7

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

Question 8

pH

Answer 8

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

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 only of carbon and hydrogen

Question 12

lipid

Answer 12

a type of biochemical that doesnot dissolve in water: fats and steroids are lipids

Question 13

protein

Answer 13

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 14

nucleic acid

Answer 14

a molecule made up of subunits called nucleotides