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alexandr1967 [171]
3 years ago
10

The oil window is the Choose one:_______

Chemistry
1 answer:
Vesna [10]3 years ago
5 0

Answer:

A. relatively narrow range of temperatures in which oil can form: 90°C to 160°C.

Explanation:

The formation of oil begins in warm, shallow oceans that were present on the Earth millions of years ago. In these oceans, extremely small dead organic matter - classified as plankton  falls to the floor of the ocean.

If temperatures of the kerogen are greater than 90°C but lower than 160°C, the kerogen is transformed into oil and natural gas. At temperatures higher than this, only natural gas (literally a gas that's a hydrocarbon) or graphite is formed. This temperature range is known as the "oil window".

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How many grams of Al2O3are present in 7.1 x 10^22 molecules of Al2O3?
Alexus [3.1K]

Answer:

13.4g

Explanation:

we know that:

1 mole = 6.02 × 10²³ atoms

make the unknown number of moles = x

x = 7.1 × 10²² atoms

putting them both together:

1 mole = 6.02 × 10²³ atoms

x = 7.1 × 10²² atoms

Cross multiply:

6.02 × 10²³ x = 7.1 × 10²²

divide both sides by 6.02 × 10²³

x =  \frac{7.1  \times  10²² }{  6.02 × 10²³}

x =  \frac{71}{602}

we now have the number of moles of Al₂CO₃

to calculate the grams (mass):

moles =  \frac{mass}{relative \: formula \: mass}

mass = moles \:  \times  \: relative \: formula \: mass

add up all of the atomic masses of Al₂CO₃ to calculate relative formula mass:

(27 × 2) + 12 + (16 × 3) = 114

the grams (mass) of Al₂CO₃:

\frac{71}{602}  \times 114 = 13.4g

5 0
2 years ago
Rank the following solutions from least polar to most polar. Rank on a scale of 1-4: 1 being the least polar and 4 being the mos
Vlada [557]

Answer:

The answer is given below

Explanation:

When electronegativity difference arises between the bonded atoms, then a molecule is polar.

When electros are shared equally between the bonded atoms or when the polar bonds in a bigger molecule cancels out each other, then a a molucule is non polar.

(a) 50% isopropanol/H2O,--- 2 (second least polar)

(b) 25% isopropanol/H2O,----- 3 (third least polar)

(c) pure water----- is 4 (most polar)

(d) 70% isopropanol/H2O. 1 (least polar)

3 0
3 years ago
How is protenin in milk broken down in our digestive system​
aliina [53]

Answer:

when we drink the milk the digestive system produce protease enzyme to break down the protein of milk.

7 0
3 years ago
A change resulting in one or more new substances being formed is a?
dem82 [27]

Answer:

C. Chemical change

Explanation:

A physical change is where something is changed but it doesnt affect the build up of the chemical. For example, if you broke sticks and threw them on the ground, that would be a physical change because the change is happening to the physical being of the object and not its chemical buildup. However, if you lit those sticks on fire, that would be considered a chemical change because you end up with two substances, ash and the remnants of the stick. A nuclear reaction would result in something blowing up so its not that. And a physical property is like what it looks like or how it smells. Hope I helped you!

3 0
2 years ago
PLEASE HELP ME ASAP I WILL MARK BRAINLYEST AND I WILL ALSO GIVE 5 EXTRA POINTS
sdas [7]

Answer:

Jack Beacuse...

Explanation:

the soil has water in it so it will be more than one matterial

5 0
2 years ago
Read 2 more answers
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