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Chemistry

1 answer:

Liula [17]4 years ago

4 0

Answer:

yes

Explanation:

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The water cycle would not be possible without ______ and ________.

ipn [44]

Answer:

I think it's 4

Explanation:

but I don't really remember the water cycle

4 0

3 years ago

Select all of the items that are true about a sample of water vapor at 101°C as it cools.

zloy xaker [14]

Answer:

D. Its temperature will remain 100 C until all the vapours condenses

Explanation:

Heat absorbed by a substance to change the state of matter is known as latent heat. This heat is utilized to break the bonds between atoms of the substance so that they can undergo phase change.

So, when water boils at 100 degree Celsius then temperature will remain constant unless and until all the water changes into vapor. As it is the latent heat that breaks the bonds between hydrogen and oxygen atoms of water so that liquid state can change into gaseous state.

Since latent heat is a hidden heat, that is why, it does not get reflected and there is no change in temperature due to it.

Thus, we can conclude that it is true that temperature will remain at 100°C until all the vapor condenses for a sample of water vapor at 101°C as it cools.

5 0

3 years ago

Calculate the mass of sodium bromide dihydrate is required to prepare 250 mL of a 0.00600 M solution

ollegr [7]

Answer: The mass of sodium bromide dihydrate is 0.208 grams

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

$Molarity=\frac{n\times 1000}{V_s}$