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olga2289 [7]
3 years ago
11

Which similarity did the Aztecs and ancient Egyptians share?

Chemistry
1 answer:
Stels [109]3 years ago
6 0
They both built pyramids
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It’s about the periodic table of elements
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Yes what the other person said can I plz get an thanks
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2 years ago
How many atoms are in NH4Cl.
RSB [31]

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What is the average kinetic energy of any substance at 0 K?
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The answer is zero!

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What mass of ice can be melted with the same quantity of heat as required to raise the temperature of 3.00 mol H2O(l) by 50.0°C?
lions [1.4K]

Answer:

m=33.9g

Explanation:

Hello,

In this case, we can first compute the heat required for such temperature increase, considering the molar heat capacity of water (75.38 J/mol°C):

Q=nCp \Delta T=3.00mol*75.38\frac{J}{mol\°C} *50.0\°C\\\\Q=11307J

Afterwards, the mass of ice that can be melted is computed by:

Q=n \Delta _{fus}H

So we solve for moles with the proper units handling:

n=\frac{Q}{\Delta _{fus}H} =\frac{11307J}{6010\frac{J}{mol} } =1.88mol

Finally, with the molar mass of water we compute the mass:

m=1.88mol*\frac{18g}{1mol}\\ \\m=33.9g

Best regards.

7 0
3 years ago
Does an atom have to have the same number of portions and neutrons in its nucleus? Yes or no
rosijanka [135]

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Yes

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Because if you multiply it with waffles you get salad

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