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Licemer1 [7]
2 years ago
9

describe the independent and dependent variables in this experiment then describe the other variables that need to be controlled

Chemistry
1 answer:
uranmaximum [27]2 years ago
3 0
independent variable is being controlled and the dependent variable is being tested and being easured in a scientific experiment
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Anna007 [38]

Explanation: D and G

             

4 0
3 years ago
What does the atomic numbrr represent on the periodic table?​
lesya692 [45]

Answer:

Explanation:

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4 0
3 years ago
The heat of vaporization of water at 100°c is 40.66 kj/mol. Calculate the quantity of heat that is absorbed/released when 9.00 g
timofeeve [1]

Answer:

20.3 kJ of heat is absorbed when 9.00 g of steam condenses to liquid water.

Explanation:

Heat is being consumed during vaporization and heat is being released during condensation.

To vaporize 1 mol of water, 40.66 kJ of heat is being consumed.

Molar mass of water = 18.02 g/mol

Hence, to vaporize 18.02 g of water , 40.66 kJ of heat is being consumed.

So, to vaporize 9.00 g of water, (\frac{40.66}{18.02}\times 9.00)kJ of heat or 20.3 kJ of heat is being consumed

As condensation is a reverse process of vaporization therefore 20.3 kJ of heat is absorbed when 9.00 g of steam condenses to liquid water.

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3 years ago
Sue dissolved a certain amount of salt in 400 grams of water to obtain 405 grams of salt solution. What was the mass of the salt
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