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expeople1 [14]
3 years ago
5

In the water cycle diagram above, which letter represents

Chemistry
1 answer:
Scorpion4ik [409]3 years ago
6 0

Answer:t

Explanation:bc

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If all the water in 430.0 mL of a 0.45 M NaCI solution evaporates what is the mass of NaCI will remain
skad [1K]

Answer:

11.31 g.

Explanation:

Molarity is defined as the no. of moles of a solute per 1.0 L of the solution.

M = (no. of moles of solute)/(V of the solution (L)).

<em>∴ M = (mass/molar mass)of NaCl/(V of the solution (L)).</em>

<em></em>

<em>∴ mass of NaCl remained after evaporation of water = (M)(V of the solution (L))(molar mass)</em> = (0.45 M)(0.43 L)(58.44 g/mol) = <em>11.31 g.</em>

6 0
3 years ago
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Fofino [41]
Hah what is this work
3 0
3 years ago
Hey need help. this is ONE question a 4 part one though. pls help
shusha [124]
I don’t get it. What is the question asking?
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3 years ago
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It's #9 Pls help will give 100 points and brainiest
Vinil7 [7]

heating is repeated to ensure all water molecules have evaporated

7 0
2 years ago
In an exothermic reaction, energy is blank the surroundings.
S_A_V [24]

Answer: released to; absorbed from

- In an exothermic reaction, energy is released to the surroundings.

- In an endothermic reaction, energy is absorbed from the surroundings.

Explanation:

An exothermic reaction is a chemical reaction that occurs spontaneously and brings about the release of energy to the surroundings. Hence, the reacting vessel feels hot as the reaction proceeds.

An endothermic reaction, on the other hand, does not occur spontaneously and proceed only when energy is absorbed from the surroundings. Hence, the reacting vessel feels cold as the reaction proceeds.

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3 years ago
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