Answer:
Sublimation
Explanation:
Sublimation is when a substance goes from a solid to a gas, without going through a liquid phase. This is not a method for separation and purification.
"<span>A. The polar regions have long winters and short, cool summers." would be the correct answer.
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Answer:
( About ) 2.42 pH
Explanation:
First convert grams to mole of the hydrochloric acid,
HCl ( moles ) = 0.7g * ( 1 mole / 36.5g ),
0.7 / 36.5 = ( About ) 0.0192 moles
Now take the moles as a fraction over the given liters, to determine " M, " the apparent pH
M = 0.0192 mole / 5.0 L,
M = 0.00384M
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Because HCl is a strong acid and will completely ionized, take a look at the steps below,
[ H+ ] = 0.00384M pH = -log[H+] = - log[0.00384],
- log[0.00384] = - ( - 2.41566... )
Solution = ( About ) 2.42 pH
Answer:
The answer is D, Magnesium.
Answer:
Gas ⟶ liquid (condensation)
Explanation:
If the molecules are far apart, they are in the gas phase.
As the temperature drops, the molecules lose kinetic energy.
They can no longer escape the attractive forces between them and their neighbours, so they stick together and form a liquid.
The most likely change of state is gas ⟶ liquid (condensation).
