Chemistry, 19.10.2021 21:40 brekline12
Alan has been driving 20 mph for the last half hour. The truck next to him has been there for a while now, so Alan is
correct to assume that the
A)
)
truck is parked.
B)
speed of the truck is 10 mph.
speed of the truck is 20 mph.
D)
speed of the truck is 30 mph.
Answers: 2
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Use examples from the article to explain one positive and one negative effect that chemistry has had on society.
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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
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What is the most common form of matter in the universe
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