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Viktor [21]
3 years ago
10

3.The _____________________system works with the ___________________and ________________systems to supply oxygen and nutrients f

rom outside sources to the cells in the body. ( 3 choices)
cardiovascular
skeletal
respiratory
digestive
Chemistry
1 answer:
Nat2105 [25]3 years ago
3 0

Answer:

Cardiovascular, respiratory and digestive

Explanation:

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2 years ago
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Two alcohols, isopropyl alcohol and propyl alcohol, have the same molecular formula, C3H8O. A solution of the two that is two-th
iris [78.8K]

Answer:

1.

Since both components of these solutions have the same molar mass, mole fractions would be the same as mass fractions.

0.110 atm = (2/3)(Pi) + (1/3)(Pn) [1]

0.089 atm = (1/3)(Pi) + (2/3)(Pn) [2]

2*[1] - [2]:

(2)(0.110) - 0.089 atm = Pi

Pi = 0.131 atm

2*[2] - [1]:

(2)(0.089) - 0.110 atm = Pn

Pn = 0.068 atm

2.

The hydroxyl (-OH) group on the end of a longer 1-propanol molecule makes it more polar than IPA. It follows that the intermolecular forces between 1-propanol are stronger than those of IPA and thus the vapor pressure of 1-propanol should be lower than IPA.

Explanation:

5 0
3 years ago
A flask holds 3.01 x 1023 molecules of carbon dioxide. The container is holding ________
sammy [17]
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3 years ago
Why does it smell like burning when i turn my heat on?
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Answer: If you smell a dusty or burning smell the first few times you turn on your heat, it’s most likely dust and dirt that’s settled on components inside your heating system throughout the summer. As you fire up the heat, those dust particles burn away, producing a weird burnt/dusty smell.

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6 0
2 years ago
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What do punnet squares do
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