Answer:
I t hi ink the answer is b sorry if I'm wrong but yeah peeps
I think it is D but im not sure
Answer:
Short term consequences astama and more disease.
Long term- people dieing and need more oxygen so use less paper and straws to not destroy the poor living things
Explanation:
There are 6.022*10^23 molecules in 1 mole of carbon
So how many will moles will be 7.87*20^7?
Let the required number of moles be ‘x’.
1 mole ———6.022*10^23
x moles———7.87*10^7
(Cross multiplication)
x=7.87*10^7/6.022*10^23
Therefore x=1.3*10^-16
Answer:
0,1 mol of carbon and 0.2 moles of hydrogen were in the original sample.
Explanation:
The combustion reaction of the compound is

And the molar mass of CO2 and H2O are 44g/mol and 18g/mol respectively
All the mass of carbon producing the CO2 must come from the carbon of the unknown compound, thus it is necessary to calculate the moles of carbon in 4.4g of CO2
of Carbon
Also, all the mass of hydrogen producing the H2O must come from the hydrogen of the unknown compound, hence it is necessary to calculate the moles of hydrogen in 1.8g of water
of Hydrogen