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AVprozaik [17]
3 years ago
10

Organic molecules always contain __________. carbon and oxygen oxygen and hydrogen carbon, hydrogen, and nitrogen carbon and hyd

rogen
Chemistry
1 answer:
ArbitrLikvidat [17]3 years ago
5 0
Carbon and hydrogen atoms
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A welding tank of oxygen gas has a volume of 100. L. The oxygen in the tank is at a pressure of 95 atm and a temperature of 30.
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3 years ago
Explain why the column of a fractional distillation apparatus should be aligned as near to the vertical as possible
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7 0
3 years ago
Help needed urgently<br>the word missing or partially seen is oxygen ​ I forgot to put more pointa
butalik [34]

Explanation:

2.04 % hydrogen

32.65% sulphur

65.31% is oxygen

atomic ratio

hydrogen =2.04÷1=2.04

sulphur =32.65÷32=1.02

oxygen =65.31÷16=4.08

simplest ratio

hydrogen = 2.04÷1.02=2

sulphur =1.02÷1.02=1

oxygen =4.08÷1.02=4

empirical formula is H2SO4

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3 years ago
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The dependant variable is what you measure during the experiment and what is affected in the experiment (this is for question 4) so the answer would be D
7 0
3 years ago
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The atomic number of gold (Au) is 79, and it has a mass number of 197. How many electrons are present in each atom of gold?
aliya0001 [1]
There would be 79 electrons present in each atom of gold. I hope this helps :)
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