Chemistry practice quiz

What part of an atom has a positive charge?

• protons

• electrons

• neutrons

• atoms

What is the center of an atom called?

• neutron

• nucleus

• proton

• electron

Tags

NGSS.MS-PS1-1

What two particles are found in the nucleus of an atom?

• protons and neutrons

• protons and electrons

• electrons and neutrons

• protons only

What particles have a negative charge?

• neutrons

• protons

• electrons

• atoms

What have a neutral charge (or no charge)?

• protons

• electrons

• neutrons

• atoms

Two or more elements that have been chemically combined to form a new substance

• a compound

• an element

• matter

• atoms

An example of a compound is _________________.

• water

• hydrogen

• oxygen

• aluminum

Tags

NGSS.MS-PS1-1

An example of an element is _______________ (pick all that apply).

• matter

• oxygen

• water

• hydrogen

How many Oxygen atoms are in H₂O?

• 1

• 2

• 0

• 4

Tags

NGSS.MS-PS1-1

How many atoms are there TOTAL in H₂SO₄ ?

• 6

• 5

• 7

• 3

Tags

NGSS.MS-PS1-1