Barium has a larger atom than calcium
Answer:
There would be 25 moles
Explanation:
This is the equation for water (synthesis):
2H₂ + O₂ → 2H₂O
Since there are 25 moles of water, the moles of hydrogen gas will have 25 moles.
Answer:
Condenser
Explanation:
A condenser is laboratory apparatus used to condense vapors — that is, turn them into liquids — by cooling them down. Condensers are routinely used in laboratory operations such as distillation, reflux, and extraction(Wikipedia).
Condensers of of practical importance especially in synthetic organic chemistry and in separation science where vapours are often condensed and collected the substance is collected in pure form by distillation.
Hey there !
Molar mass KOH = <span>56.1056 g/mol
1) Number of moles :
n = m / mm
n = 25.4 / </span><span>56.1056
n =0.452 moles
Volume in liters :
985 mL / 1000 => 0.985 L
Therefore:
M = n / V
M = </span>0.452 / 0.985
=> 0.458 M
Water heats up and cools down the fastest
Your answer is going to be B, Water.
Hope this helps!