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20 questions
Examples are diamonds (C) and Uranium (U)
elements
mixtures
compounds
Beatriz wants to make a mixture out of her bowl of blueberries. Which of the following would turn her bowl of blueberries into a mixture?
adding more blueberries to the bowl
adding raspberries to the bowl
cutting up the blueberries
mashing the blueberries
Humans absorb oxygen from the air they breathe in and exhale carbon dioxide gas, CO2. Carbon dioxide gas is
an element made of carbon and oxygen atoms.
a solution made of carbon and oxygen atoms.
a compound of carbon and oxygen atoms.
a mixture of carbon and oxygen atoms.
Which example is a compound?
N2
O2
Cu
H2O2
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