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FrozenT [24]
3 years ago
14

In the world of chemisty, a 'mole is a number of something ... a very lary large number of something.

Chemistry
1 answer:
yulyashka [42]3 years ago
5 0
Just as a dozen is 12 of something, a mole is about 6.02 * 10^23 of something .
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What type of energy is stored in the earths crust and produces earthquakes when It is released
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Heat energy because the energy in seismic waves that causes the ground to shake is heat energy. Heat energy associated with friction on the fault slip surface



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3 years ago
What two methods are used for determining the age of rocks and fossils?
Alexandra [31]

Explanation:

first one because absolute dating is a thing for rock layers

7 0
3 years ago
You are doing a peer review of a science experiment. The paper claims that an increase of pressure requires a greater addition o
Rus_ich [418]

This is true because as thermal energy increases, molecules move faster and liquids are turned into gas.

States of matter is determined by the amount of energy possessed by the particles. Particles of a solid has the least amount of energy, liquid particles have more energy than solid particles while gas particles possess the highest amount of energy.

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3 0
2 years ago
Which is the most important factor in determining the state of a substance?
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3 0
3 years ago
what is the percent by mass of a solution that contains 30 grams of potassium nitrite in 0.5 kilograms of water?
Makovka662 [10]

Answer:

5.66 %.

Explanation:

<em>mass percent is the ratio of the mass of the solute to the mass of the solution multiplied by 100.</em>

<em />

<em>mass % = (mass of solute/mass of solution) x 100.</em>

<em></em>

mass of potassium nitrite = 30.0 g,

mass of the solution = mass of water + mass of potassium nitrite = 500.0 g + 30.0 g = 530.0 g.

<em>∴ mass % = (mass of solute/mass of solution) x 100</em> = (30.0 g/530.0 g) x 100 = <em>5.66 %.</em>

5 0
3 years ago
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