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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.
When one carbon atom bonds chemically with two oxygen atoms, carbon dioxide is formed. This new substance is BEST defined as a ________________.
compound
Solid, liquid or gas? Takes the shape of its container.
Liquid
Solid, liquid, or gas? Volume can be measured by a ruler.
Solid
Solid, liquid, or gas? Expands to fill its container.
Gas
Solid, liquid, or gas? Volume can be measured by a graduated cylinder.
Liquid
Solid, liquid, or gas? Volume cannot be measured easily.
Gas
Solid, liquid, or gas? Has definite shape.
Solid
A solid (maintains/does not retain) its mass.
maintains
A solid (maintains/does not retain) its volume.
maintains
A solid (maintains/does not retain) its shape.
maintains
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
Oil floats on water because oil is __________ than water.
less dense
You have are making a boat with a base area of 20 square cm that must carry as many pennies as possible. What tools would you need to help make your boat design, flotation, and loading of your boat?
Ruler to measure the base, graduated cylinder to measure volume, and balance to measure mass.
Goldfish crackers, M&Ms, popcorn, and pretzels combined in a bowl represents a __________.
mixture
How do you make a solution MORE concentrated?
Add more solute!
