Chemistry, 08.12.2020 18:10 gildedav001
Which of the following describes a compound? (Hint: Carbon and oxygen both appear on the periodic table.)
A.
a piece of pure carbon, containing only carbon atoms
B.
oxygen gas surrounding a solid piece of carbon
C.
a substance made of two oxygen atoms for each carbon atom
D.
carbon and oxygen atoms mixed without being bonded together
Answers: 3
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Why is the structure of molecule important to its function?
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Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy
Answers: 1
Which of the following describes a compound? (Hint: Carbon and oxygen both appear on the periodic ta...
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