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Dmitry_Shevchenko [17]
3 years ago
9

Does a physical change form a new substance

Chemistry
1 answer:
beks73 [17]3 years ago
4 0

Answer:

No. No new substance is formed during Physical change.

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A solution is made by adding 200 g table salt to 1
pochemuha

We say that the solution is unsaturated.

Explanation:

If the salt solubility is 36 g in 0.1 L of water then we can dissolve 360 g of salt in 1 L of water.

Because the solution contains 200 g of salt in 1 L of water, the solution is unsaturated because more salt can be added until we reach the saturation point.

We call the solution dilute when we compare the concentration of a solution with the concentration of another solution, but here we do not compare different solutions.

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solubility

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4 years ago
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How many moles of oxygen<br> are in 2.71x10’25 molecules of carbon dioxide ?
Svetlanka [38]

Answer:

How many moles of oxygen are in 2.71 x 1025 molecules of carbon dioxide (CO2)? 90 moles. How many moles are there in 125 grams of carbon? 10.42 moles of carbon.

Explanation:

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2 years ago
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The element iodine would be expected to form covalent bond(s) in order to obey the octet rule. Use the octet rule to predict the
zhannawk [14.2K]

Answer:

HI (hydrogen iodide).

Explanation:

Hello,

In this case, since iodine is in group VIIA, it has seven valence electrons at its outer shell, which means that it only needs one bond to attain the octet. Moreover, since hydrogen has just one electron at its outer shell, one hydrogen turns out enough to obey the octet when hydrogen and iodine bond as shown below:

H-I

Therefore, the required formula is:

HI

Which is hydrogen iodide.

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3 years ago
3,3-dibromo-4-methylhex-1-yne​
mel-nik [20]

Explanation:

<h2>see the attachment. hope it will help you... </h2>

5 0
4 years ago
Pls help me i have been seeing people giving out the wrong answers on purpose and I just don't want that so pls
fiasKO [112]

Answer:

B

Explanation:

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