Convert 55.6 km to m
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Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.
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In a copper wire, a temperature increase is the result of which of the following
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The identities of substances are the same before and after which type of change
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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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