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slega [8]
3 years ago
11

Name two compounds in unpolluted air?

Chemistry
1 answer:
goblinko [34]3 years ago
6 0
Nitrogen and oxygen are in unpolluted air

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How many atoms of carbon are combined to with 2.81 moles of hydrogen atoms in a sample of the compound ethane, C2H6?
puteri [66]

Answer:

5.64×10²³ atoms C

Explanation:

Convert moles of H to moles of C:

2.81 mol H × (2 mol C / 6 mol H) = 0.937 mol C

Convert moles of C to atoms of C:

0.937 mol C × (6.02×10²³ atoms C / mol C) = 5.64×10²³ atoms C

5 0
3 years ago
The oceanic crust is destroyed at convergent boundaries because it_______________________ *
ladessa [460]

Answer: I believe the answer is d)  the rock crumbles at an ocean ridges

Explanation:

7 0
3 years ago
What volume of CH4(g), measured at 25oC and 745 Torr, must be burned in excess oxygen to release 1.00 x 106 kJ of heat to the su
anastassius [24]

Answer:

V=27992L=28.00m^3

Explanation:

Hello,

In this case, the combustion of methane is shown below:

CH_4+2O_2\rightarrow CO_2+2H_2O

And has a heat of combustion of −890.8 kJ/mol, for which the burnt moles are:

n_{CH_4}=\frac{-1.00x10^6kJ}{-890.8kJ/mol}= 1122.6molCH_4

Whereas is consider the total released heat to the surroundings (negative as it is exiting heat) and the aforementioned heat of combustion. Then, by using the ideal gas equation, we are able to compute the volume at 25 °C (298K) and 745 torr (0.98 atm) that must be measured:

PV=nRT\\\\V=\frac{nRT}{P}=\frac{1122.6mol*0.082\frac{atm*L}{mol*K}*298K}{0.98atm}\\\\V=27992L=28.00m^3

Best regards.

8 0
3 years ago
Calculate the mass of 6 moles of H2O
RUDIKE [14]
<span>6mole of H2O contains 18×6 g=108 g</span>
8 0
3 years ago
Read 2 more answers
Eaterfication experiment <br>​
Schach [20]

Answer:

Do you mean Esterification experiment?

Explanation:

8 0
3 years ago
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