Chemistry, 02.12.2019 16:31 ariloveshorses
Iron reacts with oxygen in a chemical hand-warmer. how should this reaction be categorized?
a. as an exothermic process because it releases heat
b. as an endothermic process because it releases heat
c. as an exothermic process because it absorbs heat
d. as an endothermic process because it absorbs heat
Answers: 3
Chemistry, 22.06.2019 08:00
Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.
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Chemistry, 22.06.2019 09:20
Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?
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Chemistry, 22.06.2019 18:20
Which reason best explains why metals are malleable? a)because they have delocalized electrons b)because they have localized electrons c)because they have ionic bonds d)because they have rigid bonds
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Chemistry, 22.06.2019 19:00
What information does a complete ionic equation give that the balanced equation doesn’t show?
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Iron reacts with oxygen in a chemical hand-warmer. how should this reaction be categorized?
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