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3 years ago

When should you start taking Collagen

2 answers:

8 0

Age 18 is an ideal age. Collagen levels start to deplete after the age of 25. By 30-35 we lose 1-3%, by 45 it's expected that we've lost 20%+

k0ka [10]3 years ago

5 0

After 18 but you could also start at 25 or later

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Which one of these three elements conatain the most protons

padilas [110]

Answer:

i think it's B sorry if i'm wrong

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3 years ago

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Explain why there would be a need for lithium batteries?

Leviafan [203]

Answer:

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3 years ago

How many grams of oxygen are required to react with 13.0 grams of octane (C8H18) in the combustion of octane in gasoline?

egoroff_w [7]

Grams of oxygen are required to react with 13.0 grams of octane (C8H18) in the combustion of octane in gasoline is 45.5g

Octane is a hydrocarbon which burns in gasoline in presence of oxygen according to the given balanced chemical equation,

2C₈H₁₈ + 25O₂------> 16CO₂ + 18H₂0

Molar mass of octane = 114.23g/mol

Molar mass of Oxygen = 32g/mol

According to the stiochiometry of the balanced equation the mole ratio of Octane and Oxygen is 2:25

2 mole of octane needs 25 mole of oxygen

1 mole of octane needs 12.5 moleof oxygen

114.23g of octane needs 400g of oxygen

13g of octane needs 45.5g of oxygen

Mass of oxygen needed =45.5g

Hence, the Mass of oxygen needed is 45.5g for the combustion of octane in gasoline.

Learn more about Octane here, brainly.com/question/21268869

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2 years ago

L and D forms of a molecule are what kind of isomers?

kotegsom [21]

Answer:

enantiomers

Explanation:

L and D stand for levorotatory and dextrorotatory respectively. A levorotatory molecule will rotate the plane of plane polarised light left and a dextrorotatory molecule will rotate the plane of plane polarised light right. L and D molecules are non superimposable mirror image of each other. Therefore they are also known as enantiomers.

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3 years ago

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...clutching am I.Sedimentary

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