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Olegator [25]
2 years ago
6

PLEASE HELP ASAP!!!! WILL GIVE BRANILEST

Chemistry
1 answer:
xenn [34]2 years ago
4 0

Answer:

100 ml 108 g would be the answer.

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The movement of rock pieces and other materials on Earths surface is called __________?
dangina [55]
The movement of rock pieces and other materials on earth's surface is called Weathering
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2 years ago
What is the reason behind that the melting and boiling point of iron is more than that of sodium?​
sweet [91]

Answer:

As metals are giant lattice structures, the number of electrostatic forces to be broken is extremely large, and so metals have high melting and boiling points. This means that the melting point and boiling point of metals are more similar to those for ionic compounds than for covalent substances.

Explanation:

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2 years ago
How much thermal energy is required to heat 15.2g of a metal (specific heat= 0.397 J/g C) from 21C to40.3C?
Pepsi [2]
<em>Q=mcΔT</em>
<em>Q=15.2g(0.397</em><span><em>J/g C)(40.3-21)</em>
<em>Q=</em><u>116.5J</u></span>
5 0
3 years ago
The mathematical relationship between gas solubility and pressure is called Henry's Law, solubility = kHPgas where kH is the Hen
Diano4ka-milaya [45]

Answer : The unit of k_H in mol/L.mm Hg is, 1.8\times 10^{-6}mol/L.mmHg

Explanation :

As we know that the k_H is the Henry's Law constant for argon at 25^oC is, 1.4\times 10^{-3}mol/L.atm

Now we have to determine the unit of k_H in mol/L.mm Hg

Conversion used for pressure from atm to mmHg is:

1 atm = 760 mmHg

So,

k_H=1.4\times 10^{-3}mol/L.atm\times \frac{1atm}{760mmHg}

k_H=1.8\times 10^{-6}mol/L.mmHg

Thus, the unit of k_H in mol/L.mm Hg is, 1.8\times 10^{-6}mol/L.mmHg

5 0
3 years ago
Describe the energy in coal and the way in which it’s converted to electrical energy. Write 50 to 100 words.
devlian [24]

Answer:

Coal contains chemical potential energy

Explanation:

Chemical species are known to contain chemical energy. Chemical energy is contained in chemical bonds in a chemical substance.

Since energy can neither be created nor destroyed, energy contained in chemical bonds can be transformed from one form to another. Coal contains chemical energy.

One of the ways of generating electricity is the combination of fossil fuels. This involves the conversion of chemical energy to heat energy. The steam produced is used to turn a turbine. The turning off the turbine implies a conversion of heat to mechanical energy. The turning of the turbine now produces electrical energy.

4 0
2 years ago
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