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romanna [79]
3 years ago
7

How much heat does it take to raise 100g of aluminum (c= .9 J/gC) from 12.5C to 31C?

Chemistry
1 answer:
zlopas [31]3 years ago
5 0

Answer:

When two substances having different temperatures are introduced or kept together, heat energy, Q, flows from a substance at higher temperature to a substance at lower temperature. Also, heat continues to be transferred until their temperatures are equalized, at which point the substances are in thermal equilibrium. In a closed system, the amount of energy lost is equal to but opposite the amount of energy gained.

Explanation:

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You carefully weigh out 11.00 g of caco3 powder and add it to 44.55 g of hcl solution. you notice bubbles as a reaction takes pl
Zinaida [17]
The bubbles that were observed after the mixing of the two substances is one of the products of the reaction. It is the carbon dioxide that is produced. To determine the mass of this gas produced, we need to remember the Law of conservation of mass where mass cannot be created or destroyed. With this, we can say that the total mass that goes in a process should be equal to the mass that is goes out of the process no matter what the reaction is. We do as follows:

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8 0
3 years ago
How many moles are in 123.0g (NH4)2SO4
Luda [366]
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After that, i divided the given mass by the mass of one mol of the compound.

The answer is 0.9307 moles!! I hope this helped you! :))

7 0
3 years ago
Describe how the properties of elements in the same group differ to the properties of elements in the same period
Fofino [41]

Answer:

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5 0
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Answer:

A

Explanation:

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