Q2 CSA Review Part 3

Which property is required of a liquid in order for it to be a good fuel?

• acidity

• combustibility

• density

• boiling point

Which of the following does not use metric units to measure the density of a solution?

• 105 grams/milliliter

• 1.56 pounds/fluid ounce

• 1050 kilograms/cubic meter

• 1.05 grams/cubic centimeter

Which of the following would probably not affect the rate of solubility?

• reducing the air pressure

• grinding crystals to make them smaller

• stirring the water after adding the crystal

• increasing the temperature of the water

The mass of the box in the illustration is 12 grams. What is its density? (D = m/v)

• 0.5 g/cm³

• 1.0 g/cm³

• 1.5 g/cm³

• 2.0 g/cm³

Compounds are made up of more than one element. Which of the following represents a compound?

• H₂

• NH₃

• O₂

• N₂

Tags

NGSS.MS-PS1-1

Which substance will float on top of the oil?

• substance A

• substance B

• substance C

• substance D

Tags

NGSS.MS-PS1-2

Which of the following are endothermic reaction ( 2 answers)

• burning wood

• photosynthesis

• respiration

• cooking egg

Tags

NGSS.MS-LS1-6

NGSS.MS-PS1-4

Based on the chemical equation for cellular respiration, this process is an example of _____________ reaction. (Clue: ATP is a form of energy)

• endothermic

• exothermic

• nuclear

• biotic

Tags

NGSS.MS-LS2-3

Which of these is best described as a mixture?

• Carbon dioxide

• water

• soil

• iron

If you break a glass, the shape of the glass changes but the properties in the fragments remains the same. Which of the following has occurred?

• chemical change

• temperature change

• phase change

• physical change