Test-Unit 2 matter test

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Total cards: 21•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (21)

Front (Question)

• The color of ink is a?

Back (Answer)

B. Physical property Unit 2, concept 2 page 8

Front (Question)

• Three examples of a physical change are?

Back (Answer)

D. Boiling of water, blowing up a balloon, and melting a candle Unit 2, concept 2 page 10

Front (Question)

• Matter in which the particles are free to move in all directions until they have spread evenly throughout their container is a?

Back (Answer)

C. Gas Unit 2, concept 2 page 9

Front (Question)

• Is another name for a homogeneous mixture.

Back (Answer)

D. Solution Unit 2, concept 1 page 3

Front (Question)

• Increases the surface area of a solid?

Back (Answer)

A. Increases the speed of dissolving. Unit 2, concept 3 page 28

Front (Question)

• A flask containing molecules of gas A and a separate flask containing molecules of gas B are both at the same temperature. Gases A and B must have equal?

Back (Answer)

B. Masses Unit 2, concept unit 3 page 26

Front (Question)

• Which term best describes when particles escape from the surface of a liquid and become gaseous?

Back (Answer)

B. Evaporation Unit 2, concept 3 page 28

Front (Question)

• The particles in liquid are usually?

Back (Answer)

D. Closer together and lower in energy than a gas. Unit 2, concept 3 page 27

Front (Question)

• Trail mix?

Back (Answer)

Heterogeneous. Unit 2, concept 1 page 3

#10

Front (Question)

• Fragrance of a flower?

Back (Answer)

Physical change Unit 2, concept 2 page 10

#11

Front (Question)

• Burning popcorn and making water.

Back (Answer)

Chemical change Unit 2, concept 2 page 10

#12

Front (Question)

• Inflating a tire?

Back (Answer)

Physical change Unit 2, concept 2 page 10

#13

Front (Question)

• How many grams of NaCIO3 are needed to make a saturated solution in 100 g of water at 90 degrees c.

Back (Answer)

180 g. Unit 2, concept 4 page 27

#14

Front (Question)

• At what temperature is the solubility of KBr the same as the KNO3?

Back (Answer)

35 degrees Celsius Unit 2, concept 4 page 27

#15

Front (Question)

• The solubility of which salt is the least affected by temperature?

Back (Answer)

Sodium chloride , NaCL Unit 2, concept 4 page 27

#16

Front (Question)

• Iron and oxygen react to form rust. What will happen to the mass of the rust compared to the mass of the iron and oxygen before the reaction?

Back (Answer)

The mass will stay the same because of the law of conservation of mass. Unit 2, concept 2 page 11

#17

Front (Question)

• List and explain the three factors that increase the solubility rate of a substance.

Back (Answer)

• Stir the solution, it moves the solution • Heat the solvent, the particles move more • Smaller solute size, smaller equals faster Unit 2, concept 4 page 33

#18

Front (Question)

• Find the mass of a 50 mL volume of water if the density of water is 1 g/mL.

Back (Answer)

Given= 50mL, 1 g/mL Unit 2, concept 2 page 9.

#19

Front (Question)

• A graduated cylinder has 33.5 mL of water. A piece of metal is added to the water and the new volume is now 46.2 mL. If the metal has a mass of 16.25 g, what is the density?

Back (Answer)

Vf= ?, Vi= ? Solve= 12.7 mL. Unit 2, concept 2 page 9.

#20

Front (Question)

• Name one similarity between compounds and homogeneous mixtures and one difference.

Back (Answer)

Similarity- they are both evenly distributed Difference- compounds are physical, homogeneous are chemical. Unit 2, concept 1 page 3

#21

Front (Question)

• Explain how salt dissociates.

Back (Answer)

The covalent bonds of water are stronger than the ionic bonds in the salt molecules. … Water molecules pull the sodium and chloride ions apart, breaking the ionic bond that held them together. Unit 2, concept 4 page 33.