Chemistry Quiz

Copper and gold have similar reactive properties. On the periodic table of the elements, these elements are most likely to

• be in the same group.

• be in the same period.

• have nearly the same mass.

• have the same number of protons.

Tags

NGSS.HS-PS1-1

An atom has a mass of 24 and a nuclear charge of 12. Which statement about the atom is accurate?

• It has twice as many protons as electrons.

• It has twice as many neutrons as protons.

• It has equal numbers of neutrons and protons.

• It has equal numbers of nuclear particles and electrons.

What is the chemical formula of copper (I) sulfate?

• CuSO₄

• Cu₂SO₄

• Cu(SO₄)₂

• Cu₂(SO₄)₂

Magnesium bromide is one of the most abundant compounds found in seawater. Which formula correctly represents magnesium bromide?

• MgBr

• Mg Br₂

• Mg₂ Br

• Mg₃Br₂

Tags

NGSS.MS-PS1-1

An alpha particle that is emitted as nuclear radiation has the same structure as a

• hydrogen nucleus.

• helium nucleus.

• neutron.

• electron.

Tags

NGSS.HS-PS1-8

What type of chemical reaction occurs when the body breaks down fats and sugars that supply it with energy?

• endothermic

• exothermic

• electrical

• physical

Tags

NGSS.HS-PS1-4

What is the correct electron dot formula for carbon dioxide?

• Option A

• Option B

• Option C

• Option D

Tags

NGSS.HS-PS1-2

Tags

NGSS.HS-PS1-8

Which set of elements has similar bonding properties?

• Cl, Br, and F

• K, Ca, and Sc

• Kr, Cl, and O

• Be, C, and O

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What distinguishes a conductor from an insulator?

• the rate that neutrons travel through the material

• the ease of flow of electrons through the material

• the amount of electrons present

• the amount of neutrons present

Tags

NGSS.HS-PS2-6