Answer:
The answer is ""
Explanation:
We arrange oxoacids to decrease the intensity of acids in this question. Or we may conclude all this from strongest to weakest acids they order oxoacids, that's why above given order is correct.
From this value, and assuming that air contains only molecular nitrogen and molecular oxygen gases, calculate the mass percent o
1 answer:
Answer:
<em>60% and 52%</em>
Explanation:
At Standard temperature and volume (STP)
Volume of gas = 22.4L
Density = mass/volume
⇒ 1.186 =
= 26.566g
Molar mass of O2 = 16g/mole
Molar mass of N2 = 14g/mol
% mass of O2 = 16/26.566 × 100
<u>= 60.23 %</u>
% mass of N2 = 14/26.566 × 100
<u>= 52.70 %</u>
(Check: totl composition of gas is 100% i.e 60 + 52 %)
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Answer:
XY → X + Y general reaction represents a decomposition reaction where a molecule is “broken” in two separate molecules
Explanation:
In a double-displacement reaction two molecules will exchange atoms or group of atoms, and it should look like this:
XY + AB → XA + YB
In a combustion reaction molecules are reacting with oxygen generating oxides.
XY + O → XO + YO
In a single-displacement reaction an atom or a group of atoms in a molecule are replaced by other atoms, and it should look like this:
XY + A → XA + Y