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WorksheetsChemistry Unit Review - Part 3: 8.P.1.3
Total questions: 10
Worksheet time: 6mins
When baking soda and vinegar react, the product includes bubbles. What has MOST LIKELY occurred?
gas formation
exothermic reaction
precipitate formation
What is the BEST way to measure the gas produced in a chemical reaction?
Perform the experiment in a beaker.
Perform the experiment in a room.
Perform the experiment in a closed system.
Two clear solutions are mixed together in a beaker. Which result would indicate a chemical reaction had occurred between these solutions?
increase of volume in the beaker
decrease of volume in the beaker
increase in temperature of the beaker
When a marshmallow is toasted over a fire, which is the BEST description for what happens to the outside of the marshmallow?
chemical change
physical change
enzyme creation
Which BEST demonstrates a physical change?
change in temperature
formation of a gas
change in state
A syringe is filled with 20mL of water. A chemical reaction produces carbon dioxide ( CO2 ) inside the syringe, which now reads 26mL. How much CO2 was produced by the reaction?
6.0 mL
20.0 mL
26.0 mL
Liquids placed in a beaker will settle in specific layers. Which physical property of matter does this illustrate?
density
polarity
solubility
malleability
A piece of paper burns, producing heat and light. Which BEST describes the process of burning?
Burning is a physical change. The paper mixes with oxygen in the air, producing heat and light.
Burning is a chemical change. The paper reacts with oxygen in the air, producing heat and light.
Burning is a physical change. The paper changes from a solid to a gas, producing heat and light.
Burning is a chemical change. The paper breaks down in sunlight, producing heat and light.
Which describes the change in the mass of water during the freezing process?
It stays the same.
It increases as the volume increases.
It decreases as the volume increases.
It decreases as the volume decreases.
What chemical reaction results in the formation of a solid?
acid base reaction
endothermic
precipitate
