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Artist 52 [7]
3 years ago
6

Explain the·relationship among atoms, elements, and compounds.

Chemistry
1 answer:
Minchanka [31]3 years ago
3 0
DFBHVBHGHFGSDGBN CVXBFGHRTSHBTGF
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A) State the Law of Conservation of Matter.​
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Answer:

matter can either be created nor destroyed but can be transmitted fromone state to another state

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2 years ago
Please help me I will give a brainleist​
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When the dew point temperature and air temperature are equal, the air is said to be saturated. Dew point temperature is NEVER GREATER than the air temperature. Therefore, if the air cools, moisture must be removed from the air and this is accomplished through condensation.
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Calculate the feed ratio of adipic acid and hexamethylene diamine that should be employed to obtain a polyamide of approximately
artcher [175]

Answer:

r= 0.9949 (For 15,000)

r=0.995 (For 19,000)

Explanation:

We know that

Molecular weight of hexamethylene diamine = 116.21 g/mol

Molecular weight of adipic acid = 146.14 g/mol

Molecular weight of water = 18.016 g/mol

As we know that when  adipic acid  and hexamethylene diamine react then nylon 6, 6 comes out as the final product and release 2 molecule of water.

So

M_{repeat}=146.14+166.21-2\times 18.106\ g/mol

M_{repeat}=226.32\ g/mol

So

Mo= 226.32/2 =113.16 g/mol

M_n=X_nM_o

Given that

Mn= 15,000 g/mol

So

15,000 = Xn x 113.16

Xn = 132.55

Now by using Carothers equation we know that

X_n=\dfrac{1+r}{1+r-2rp}

132.55=\dfrac{1+r}{1+r-2\times 0.99r}

By calculating we get

r= 0.9949

For 19,000

19,000 = Xn x 113.16

Xn = 167.99

By calculating in same process given above we get

r=0.995

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3 years ago
Draw a structural isomer of ethylcyclohexane that also contains a 6-carbon ring
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1,2-methylcyclohexane, 1,3-methylcyclohexane, 1,4-methylcyclohexane
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3 years ago
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You want to create 14.0 g of copper to meld into a piece of jewelry. You
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Answer:

3.4g of Al

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you would need to start with 3.4 g of Al

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