When one carbon atom bonds chemically with two oxygen atoms, carbon dioxide is formed. This new substance is BEST defined as a ________________.
compound
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10
What would make a solute dissolve faster?
smaller solute sizes, temperature increase
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10
food coloring dissolving in water is an example of...
solution
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Solid, liquid, or gas? Volume cannot be measured easily.
Gas
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10
Solid, liquid or gas? Takes the shape of its container.
Liquid
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10
Beaker B has baking soda and lemon juice added to it. Beaker B forms bubbles. What kind of change, if any, is taking place?
Chemical Change
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trap
No points!
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gold
Win 50 points!
Okay!
rocket
Go to first place!
Okay!
lifesaver
Give 20 points!
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10
Janajah examined different minerals. She noticed that the minerals have different colors and lusters. She determines the red mineral can scratch the colorless mineral. She concludes the red mineral is _________ than the colorless mineral.
harder
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boom
Lose 50 points!
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star
Double points!
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fairy
Take points!
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20
25
thief
Give points!
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25
10
Goldfish crackers, M&Ms, popcorn, and pretzels combined in a bowl represents a __________.
mixture
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10
What would decrease the rate of a solute dissolving (dissolve slower)?
larger solute sizes, decreased temperatures
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10
What elements make up hydrogen peroxide, and how many atoms of each element are there?
Hydrogen and Oxygen. There are 2 atoms of Hydrogen and 2 atoms of Oxygen.