a) two compounds combining to form a mixture
Chemistry, 27.12.2019 10:31 jebjeb6135
Which of these represents a chemical change?
a) two compounds combining to form a mixture
b) a mixture being separated into two elements
c) a compound being separated into two elements
d) an element changing state from solid to liquid
Answers: 1
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Zinc + lead(ii) nitrate yield zinc nitrate + leadwhat's the chemical equation for this?
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What is a scientific theory? a. a scientist's guess about how something works b. the results of an experiment obtained using the scientific method c. a proven fact that will never change d. an idea that is backed by data from many sources
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Water (2510 g ) is heated until it just begins to boil. if the water absorbs 5.09×105 j of heat in the process, what was the initial temperature of the water?
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Cucl2 + 2nano3 cu(no3)2 + 2nacl what is the percent yield of nacl if 31.0 g of cucl2 reacts with excess nano3 to produce 21.2 g of nacl? 49.7% 58.4% 63.6% 78.7%
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Which of these represents a chemical change?
a) two compounds combining to form a mixture
a) two compounds combining to form a mixture
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