Chemistry Fall Midterm Review Part 1

What is the physical state of matter with a definite volume but definite shape?

• Solid
• Liquid
• Gas
• Plasma

Tags

NGSS.MS-PS1-4

Why is water's ability to exist in all three states of matter important for the environment?

• It allows for the formation of different types of rocks.
• It enables the water cycle, which includes evaporation, condensation, and precipitation.
• It helps in the formation of solid fuels.
• It reduces the impact of temperature changes on plants.

Tags

NGSS.MS-ESS2-4

At what temperature does water freeze under normal atmospheric pressure?

• 212 °F
• 32 °F
• 14 °F
• 112 °F

Which of the following is characteristic of a physical change?

• The change can be observed.
• Substances are changed into different substances.
• The substance is destroyed in the process.
• The change is not observable.

Which of the following is NOT an example of a chemical change?

• Leaves changing color
• Baking brownies
• Cutting hair
• Nail rusting

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A student conducted an activity with the given experimental set up. He observed that when baking powder is mixed with vinegar, carbon dioxide gas is released in test tube A and the lime water in test tube B turns milky. Which explains the type of changes that occurred in the test tubes?

• Test tube A – physical change, as temperature did not change Test tube B – physical change, as the color of lime water changed
• Test tube A – physical change, as bubbles were formed Test tube B – chemical change, as a new substance was formed
• Test tube A – chemical change, as a gas was formed Test tube B – physical change, as the color of lime water changed
• Test tube A – chemical change, as a gas was formed Test tube B – chemical change, as a new substance was formed

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of these conditions would signify a chemical change has occurred when combining elements? I. Emission of light II. Change in mass III. Emission of heat IV. Change in volume V. Formation of a precipitate VI. Formation of gas bubbles

• I, II, III
• I, III, V
• I, III, VI
• I, IV, V

Tags

NGSS.MS-PS1-2

What is NOT a physical change?

• freezing cheese
• vaporizing cheese
• burning cheese
• melting cheese

Tags

NGSS.MS-PS1-5

What is NOT an example of a physical property?

• Boiling Point
• Flammability
• Color
• Texture

Which of the following is NOT a mixture?

• Saltwater
• Air
• Water
• Soil