Molecule Assessment Review

Starch is a polymer made up of chains of _______ molecules.

• glucose

• glycogen

• carbon

• fat

Tags

NGSS.MS-LS1-7

A molecule is:

• two or more substances that are mixed together.

• two or more atoms that are chemically bonded.

• a particle found in the nucleus of an atom.

• the smallest part of an element that still has the properties of that element.

Tags

NGSS.MS-PS1-1

A diatomic molecule is made from __________.

• any atom

• more than one kind of atom

• two atoms from the same element

• unstable atoms

Tags

NGSS.MS-PS1-1

Identify which of the following is an artificial polymer.

• plastic

• cotton

• protein

• DNA

Tags

NGSS.MS-PS1-3

Water is made of two common ions. These are hydroxide and _____.

• oxide

• oxygen

• hydrogen

• hydroxide

Tags

NGSS.MS-PS1-1

At room temperature, oxygen is a gas and hydrogen is a gas. When they combine at room temperature, they form a _______________.

• solid

• liquid

• gas

• Solution

A(n) ____________ bond is when atoms share electrons.

• ionic

• metallic

• covalent

• polar

When dissolved into water, a molecule of potassium chloride ___________.

• combines with the water molecules

• separates into ions of potassium and ions of chlorine

• separates into two molecules

• forms a new molecule

Tags

NGSS.MS-PS1-2

Proteins are polymers made of long strands of __________.

• carbohydrates

• amino acids

• carbons

• sugars

Tags

NGSS.HS-LS1-6

Which of the following represents a molecule?

• Ca

• Co

• CO

• Cu

Tags

NGSS.MS-PS1-1