Redemption Questions: Chemistry Common Assessment 4

Where can matter be found?

• Everywhere because everything is made of matter.

• Only on the Earth.

• In a solid and gas forms only.

Tags

NGSS.MS-LS2-3

What is the formula for density?

• density = mass x volume
• density = mass / volume
• density = mass + volume
• density = mass - volume

Jack has a rock. The rock has a mass of 14 g and a volume of 2 cm³. What is the density of the rock?

• 7 mL
• 7 g/cm³
• 28 g/cm³
• 1/7 g/cm³

Frank has an eraser. It has a mass of 4 g, and a volume of 2 cm³. What is its density?

• 8 g/cm³
• 2 g/cm³
• 1/2 g/cm³
• 24 g/cm³

Why do some substances float on water?

• they are warmer than water
• they are cooler than water
• they are more dense than water
• they are less dense than water

A substance that is 3 on the pH scale would be a(n):

• acid

• base

• neutral

• solute

Which one of the following is an example of a base?

• orange juice
• dish soap
• vinegar
• lemons

Bases are located where on the pH scale?

• any number can be a base

• below 7

• above 7

• above 14

Which of the following is NOT a characteristic of an acid?

• sour taste

• corrosive

• it feels slippery

• it makes blue litmus paper turn red.

pH stands for ______.

• potential of Hydrogen

• potential of Helium

• potential of Hydroxide

• hydrogen ions