Chemistry, 19.01.2021 14:00 Kimberley5752
Some zinc powder was stirred into copper sulfate solution. Initial temperature of copper sulfate =20 C, final temperature of solution =45 C. Explain whether an exothermic or endothermic reaction occurred and explain why.
Answers: 1
Chemistry, 21.06.2019 17:40
What are the resulting coefficients when you balance the chemical equation for the combustion of ethane, c2h6? in this reaction, ethane is burned in the presence of oxygen (o2) to form carbon dioxide (co2) and water (h2o). (g)+(g)→(g)+(g)
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Chemistry, 21.06.2019 20:30
There is an area in idaho named craters of the moon where most of the ground is covered with basalt, adark gray, igneous rock with no visibl crystals. what can you infer about the geographical history of the area?
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Chemistry, 22.06.2019 16:50
Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
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Some zinc powder was stirred into copper sulfate solution. Initial temperature of copper sulfate =20...
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