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Ahat [919]
3 years ago
8

What is stoichiometry in chemistry?

Chemistry
2 answers:
Serhud [2]3 years ago
7 0
Comparing individuals
Ugo [173]3 years ago
4 0

Answer: Stoichiometry is the process of comparing the individual qualitative or numerical variables of the reactants or products involved in a chemical reaction.

Explanation:

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true

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The process in which the nucleus of an atom splits into two lighter atoms, releasing a large amount of energy, is nuclear .
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It's nuclear fission

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What is condensation ?
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gvapor or gas to liquid

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water which collects as droplets on cold surface when humid air is in contact with it

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When calculating the equilibrium constant, aqueous solutes must be expressed in moles per liter (M), and gases must be expressed
alukav5142 [94]

Answer:

B. They are dimensionless ratios of the actual concentration or pressure divided by standard state concentration, which is 1 M for solutions and 1 bar for gases.

Explanation:

Activity of a substance is defined as the ratio of an effective concentration or an effective pressure to a standard state pressure or a standard state pressure. It is usually a unit less ratio.

Concentrations in an equilibrium constant are really dimensionless ratios of actual concentrations divided by standard state concentrations. Since standard states are 1 M for solutes, 1 bar for gases, and pure substances for solids and liquids, these are the units to be used.

Hence, activity is a fudge factor to ideal solutions that correct the true concentration. Activity of a gas and solute concentration is a ratio with no unit.

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3 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>
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3 years ago
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