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s344n2d4d5 [400]
3 years ago
9

Activity

Chemistry
1 answer:
Monica [59]3 years ago
8 0

Answer:

The mass of a pure substance represents a specific number of pure substance 'molecules', as defined by molecular weight. The relative atomic mass (atomic weight) in grams/mole (g/mol) is the molar mass of a substance, which means it is the mass of one mole of that substance.

Explanation:

Hope this helps :)

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A slice of pizza has 500 kcal. If we could burn the pizza and use all the heat to warm a 50-L container of cold water, what woul
gayaneshka [121]

Answer:

10°C  

Explanation:

Heat gain by water = Heat lost by the slice of pizza

Thus,    

m_{water}\times C_{water}\times \Delta T=Q

<u>For water:  </u>

Volume = 50.0 L

Density of water= 1 kg/L  

So, mass of the water:  

Mass\ of\ water=Density \times {Volume\ of\ water}  

Mass\ of\ water=1 kg/L \times {50.0\ L}  

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Specific heat of water = 1 kcal/kg°C  

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For slice of pizza:  

Q = 500 kcal

So,

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3 years ago
What type of electrical charge does the electron carry? a. positive
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The type of charge an electron carries is B negative
3 0
2 years ago
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What is the density if<br> a sample of rock has a mass of 69<br> g and a volume of<br> 23<br> ml?
kiruha [24]
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Explanation:
1. Multiply the numbers
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Answer:

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3 years ago
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