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Chemistry, 12.07.2019 03:30, James17syoboda
According to the big bang theory, which statements are accurate about how the universe came to be? check all that apply. it expanded slowly. it gradually warmed. stars and galaxies formed. atoms such as hydrogen and helium formed. it was no bigger than the head of a pin before it exploded.
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Answers: 2
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When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (Ξ΄ch< (c14h10,s)=β7061 kj molβ1.)
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Chemistry, 22.06.2019 12:30, Svetakotok
Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?
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