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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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Answer:

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When nad becomes nadh, it is being? oxidized and releasing chemical energy. reduced and gaining chemical energy. oxidized and ga
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When NAD becomes NADH, it is being reduced and gaining chemical energy.

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8 0
1 year ago
A science teacher has a supply of 50% sugar solution and a supply of 80% sugar solution. How much of each solution should the te
Monica [59]
You can establish a system of two equation with two variables.

Varibles are:
V1 = volume of the 50% sugar solution
V2 = volumen of the 80% sugar solution

Equations:
Balance of sugar:

Sugar from 50% solution: 0.5*V1
Sugar from 80% solution: 0.8*V2
Sugar in the final solution (mix): 0.6 * 105 = 63

1) 0.5V1 + 0.8V2 = 63

Final volume = volume of 50% solution + volume of 80% solution

2) V1 + V2 = 105

From (2) V1 = 105 - V2

Substitue in (1)

0.5 (105 - V2) + 0.8 V2 = 63

52.5 - 0.5V2 + 0.8V2 = 63

0.3 V2 = 63 - 52.5

0.3 V2 = 10.5

V2 = 10.5/0.3
V2 = 35mL

V1 = 105 - 35 = 70 mL

Answer: 70 mL of the 50% solution and 35 mL of the 80% solution.
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3 years ago
What needs to happen at point 3 for igneous rock to transform into sedimentary rock?
lara [203]
An igneous rock is crushed into little shards of rock called sediment, the sediment is then packed together by other rocks or strong forces, that form together to make a Sedimentary rock.
4 0
2 years ago
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