Chemistry Final Exam

What is the volume of a piece of zinc with measurements 5.0 cm x 5.0 cm x 5.0 cm?

• 15 cm³

• 125 cm³

• 15 cm

• 125 cm

What is the volume of the fluid in the graduated cylinder shown?

• 12.0 ml

• 13.0 ml

• 13.5 ml

• 12.5 ml

Different substances can often be identified by their density. Density is a derived unit equal to:

• mass x volume

• volume / mass

• length x width x height

• mass /volume

Tags

NGSS.MS-PS1-2

All of the following are physical changes except:

• Melting

• burning

• condensing

• vaporizing

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

If the graph represents the energy of the reactants and products of a chemical reaction, which of the following is true of the reaction?

• there is an exothermic reaction

• there is an endothermic reaction

• the activation energy is lower than the energy released

• the total energy is higher than the starting energy

Tags

NGSS.HS-PS1-4

Atoms in a _______ are closely packed vibrating particles.

• plasma

• liquid

• solid

• gas

Tags

NGSS.HS-PS1-3

1 ml is the same as which af the following? (Mark all that apply)

• 1 cc

• 1 cm³

• 1 dm³

Increasing the temperature of a substance causes the particles to speed up and can cause all of the following except:

• condensing

• vaporizing

• melting

• boiling

Tags

NGSS.HS-PS1-5

Which is NOT a chemical property?

• iron will react with oxygen

• white phosphorus is very flammable

• copper is malleable (can be bounded into sheets) and ductile (can be pulled into wire)

• lead is toxic

Which is a Physical Change?

• iron is oxidized to become rust (iron oxide)

• carbon products are usually combustible

• Decomposition is a necessary reaction

• dissolving substances is often the 1st step in any procedure

Tags

NGSS.MS-PS1-2