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Ostrovityanka [42]
3 years ago
8

Fossil fuels form natural­ly from decaying plants and animals living in ancient seas millions of years ago. This is harvested as

crude oil and it contains many hydrocarbons, or molecules that contain hydrogen and carbon in various lengths and structures. The refining process uses separation and a ___________ technique called conversion, to turn longer chain molecules such as in diesel fuel are broken into shorter ones forming gasoline.
A) chemical processing
B) material preparation
C) synthetic preservation
D) physical transformation
Chemistry
1 answer:
Anika [276]3 years ago
8 0
The answer is a.......
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2C2H2 + 5O2 → 4CO2 + 2 H2O How many grams of CO2 are required to react with exactly 3.00 mol of O2? 106 g 132 g 165 g 76.8 g
cricket20 [7]

Hey there!:

Given the reaction:

2 C2H2 + 5 O2 → 4 CO2 + 2 H2O

5 moles O2 ------------- 4 moles CO2

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So, molar  mass CO2 = 44.01 g/mol

Therefore:

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Answer A


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The rate of a reaction is measured by how fast a reactant is used up to how fast a product is formed.
bezimeni [28]
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