Matter & Its Interactions Lessons 4-6

Which of the following substances has a low pH?

• Baking Soda

• Citric Acid

• Baking Power

• Borax

The density of water is

Which of the following provide evidence of a chemical change? (Select all that apply)

• Release of a gas

• Change in temperature

• Formation of a precipitate

• Change of state

• Release of energy

Tags

NGSS.MS-PS1-2

Mixing acetic acid and sodium bicarbonate results in a bubbling and fizzing substance. This is evidence of a ____________ change. (Spelling matters)

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What will likely happen to a liquid with a density of 0.86g/mL when placed into water?

• It will float.

• It will sink.

• It will mix with water.

• Because it is a liquid and water is also a liquid, nothing will happen.

What is the density of aluminum?

• It varies depending on the mass of the object

• 12 grams per cubic centimeter

• 2.7 grams per cubic centimeter

• About .37 grams per cubic centimeter

What is the density of an object that has a volume of 21 cubic centimeters and a mass of 7 grams?

• 7 grams per cubic centimeter

• 1/3 grams per cubic centimeter

• 1/3 grams

• 7 cubic centimeters

The TWO properties that ALL matter has; and thus is DEFINED by.

• Density

• Mass

• Volume

• Solubility

Answer explanation

Yes, all matter does in fact also have density, but remember that matter is ANYTHING THAT HAS MASS AND VOLUME, by definition.

If an object has the dimensions shown in the picture as measured in cm , what is its volume?

• 12 cubic centimeters

• 144 centimeters

• 144 cubic centimeters

• 48 cubic centimeters

Solubility is an example of a ___________.

• Physical Change

• Physical Property

• Chemical Change

• Chemical Property