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leonid [27]
3 years ago
9

He dissolution of gases in water is virtually always exothermic because __________. a gases react exothermically with water b th

e exothermic step in the solution-formation process is unnecessary c neither of the two endothermic steps in the solution-formation process is necessary d all three steps in the solution-formation process are exothermic e one of the two endothermic steps (separation of solute particles) in the solution-formation process is unnecessary
Chemistry
1 answer:
lara [203]3 years ago
5 0
Do you have a picture of where you go this question from?
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Convert -230,000J to kJ
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answer: -230kJ
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3 years ago
FIRST GETS BRAINLIEST
lisov135 [29]

Answer:

0.07172 L = 7.172 mL.

Explanation:

  • We can use the general law of ideal gas: <em>PV = nRT. </em>

where, P is the pressure of the gas in atm (P = 1.0 atm, Standard P).

V is the volume of the gas in L (V = ??? L).

n is the no. of moles of the gas in mol (n = 3.2 x 10⁻³ mol).

R is the general gas constant (R = 0.0821 L.atm/mol.K),

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3 years ago
Which of the following statements is true about rain falling from clouds?*
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Answer:

Clouds are not made of liquid water but they hold liquid water, and when the pool of liquid water that fills the inside of clouds gets too large for the cloud to hold, the cloud releases the water as rain. ... Rain does not fall from clouds.

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In your own words, define:
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Hey there!

1.)

The law of conservation of mass states that matter cannot be created or destroyed. This means in a chemical reaction, the products must be equal to the reactants.

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In a balanced chemical equation, there are the same amount of each type of atom, or element, on each side. The products must be equal to the reactants to follow the law of conservation of mass.

3.)

When a chemical reaction occurs, we can see evidence such as bubbles, odor, color change, and heat/light being released. These all are signs that a new substance is being formed.

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2 years ago
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