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WARRIOR [948]
3 years ago
9

Please help im doing a test right now!!

Chemistry
2 answers:
lubasha [3.4K]3 years ago
8 0

Answer:

the first one is correct

Explanation:

the most reactive metals reat with cold water quickly but tn interactive one can't

Katen [24]3 years ago
5 0

Answer:

it's the first option!!!

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When electrons are removed from the outermost shell of a calcium atom becomes
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A 50 L cylinder is filled with argon gas to a pressure of 10130.0 kPa at 300°C. How many moles of argon gas does the cylinder co
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To answer this question, we will use the general gas law which states that:
PV = nRT where:
P is the pressure of the gas = <span>10130.0 kPa
</span>V is the volume of the gas = 50 liters
n is the number of moles that we want to calculate
R is the gas constant = <span>8.314 L∙kPa/K∙mol
T is the temperature = 300+273 = 573 degree kelvin

Substitute with the givens in the equation to get the number of moles as follows:
</span><span>10130 * 50 = n * 8.314 * 573
506500 = 4763.922 n
n = </span>506500 / 4763.922
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A solution is made by dissolving 4.0 moles of sodium chloride (NaCl) in 2.05 kilograms of water. If the molal boiling point cons
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Properties of a solution that depend only on the ratio of the number of particles of solute and solvent in the solution are known as colligative properties. For this problem, we use boiling point elevation concept.

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T(boiling point) = 101.99 C
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3 years ago
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