Which statement best describes the work and energy in these examples?
Example 1: Running a car...
Chemistry, 05.05.2020 01:25 allisonzawodny3533
Which statement best describes the work and energy in these examples?
Example 1: Running a car requires gas.
Example 2: Humans require food to live.
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The gas and food are examples of energy.
The gas and food are examples of work,
The gas and humans are examples of work,
The food and car are examples of energy.
Answers: 3
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The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams
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