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JulijaS [17]
3 years ago
6

In an endothermic reaction what is true of the enthalpy

Chemistry
1 answer:
kow [346]3 years ago
8 0
A. Hope this helps. :-)
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it's going to be D

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What is the density of an object if its mass is 10 g and a volume of 2 mL?
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Hi there! Let's solve this problem shall we!

⠀Volume = 10g

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In this specific problem, they are asking us to find the <u><em>density </em></u>of the object. So,<u><em> using the information given to us</em></u> (volume and mass), let's solve the problem!

Now, if you remember, D = M ÷ V

So, let's fill in the blanks!

D = Our unknown value

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Here is the filled out formula:

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2 years ago
Question 9 (5 points)
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3 years ago
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After that, i divided the given mass by the mass of one mol of the compound.

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A coffee cup calorimeter will not be used to directly measure the enthalpy of magnesium combustion because
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A coffee cup calorimeter is great for measuring heat flow in a solution, but it can't be used for reactions that involve gases since they would escape from the cup. The coffee cup calorimeter can't be used for high-temperature reactions, either, because they would melt the cup.

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