Vocabulary 20-30

Question 0

Covalent bond

Answer 0

Forms when electrons are shared between atoms

Question 1

Ionic bond

Answer 1

formed when one or more electrons are transferred from one atom to another

Question 2

Valence electrons

Answer 2

The electron in the outer shell or energy level that are available for bondinf

Question 3

pH

Answer 3

The measure of acidity or alkalinity of a solution

Question 4

Acid

Answer 4

A substance that dissolves in water to release hydrogen ion (H+)

Question 5

Base

Answer 5

A substance that dissolves in water to release a hydroxide ion (OH-)

Question 6

Deoxyribonucleic acid (DNA)

Answer 6

The nucleic acid that contains all genetic information for a cell

Question 7

Double helix

Answer 7

The shape of DNA that resembles a spiral staircase or a twisted ladder

Question 8

Nucleic acid

Answer 8

The building block of living organisms that passes genetic information for a cell from one generation to the next

Question 9

Nucleotide

Answer 9

A monomer of nucleic acid; consisting of sugar, phosphate, and a nitrogen base