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kap26 [50]
2 years ago
6

Water H20, is made up of different elements, hydrogen and oxygen. Is this type of combination a mixture or pure substance?

Chemistry
1 answer:
vlabodo [156]2 years ago
3 0
Believe it or not it’s a pure substance, two hydrogen atoms combine with one oxygen atom chemically, forming a new substance that has properties different from hydrogen alone or oxygen alone.
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A 28.4 g sample of an unknown metal is heated to 39.4 °C, then is placed in a calorimeter containing 50.0 g of water. Temperatur
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Answer:

THE SPECIFIC HEAT OF THE METAL IS 0.8983 J/g °C

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Heat lost by the metal is the same as the heat gained by water

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Change in temperature = 39.4 °C - 23 °C = 16.4 °C

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C = 418.4 / 28.4 * 16.4

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