Chemistry, 09.12.2020 19:00 black4sureg
When a strip of tin is placed in a closed test tube containing dilute hydrochloric acid, bubbles of hydrogen gas slowly appear. Circle the effect of each of the following on the rate of this reaction:
Using small pieces of tin instead of a strip Increase Decrease No Change
Using acid that is more concentrated Increase Decrease No Change
Using a beaker instead of a tube Increase Decrease No Change
Cooling the reactants Increase Decrease No Change
Answers: 2
Chemistry, 22.06.2019 00:00
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Chemistry, 22.06.2019 02:00
In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al
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Chemistry, 22.06.2019 11:00
Problem page combustion of hydrocarbons such as pentane ( c5 h12 ) produces carbon dioxide, a "greenhouse gas." greenhouse gases in the earth's atmosphere can trap the sun's heat, raising the average temperature of the earth. for this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide.(a) write a balanced chemical equation, including physical state symbols, for the combustion of liquid pentane into gaseous carbon dioxide and gaseous water. (b) suppose 0.350 kg of pentane are burned in air at a pressure of exactly 1 atm and a temperature of 20.0 degree c. calculate the volume of carbon dioxide gas that is produced.be sure your answer has the correct number of significant digits.
Answers: 2
Chemistry, 22.06.2019 13:00
Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?
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When a strip of tin is placed in a closed test tube containing dilute hydrochloric acid, bubbles of...
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