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3 years ago

What happens during all chemical changes?

Chemistry

2 answers:

3241004551 [841]3 years ago

7 0

Answer: Option (B) is the correct answer.

Explanation:

A change which brings change in composition of atoms of a substance to result in the formation of new substances is known as a chemical change.

Therefore, in a chemical change new substances are formed which have different properties as compared to their reactants.

For example, $2Na + Cl_{2} \rightarrow 2NaCl$

Thus, we can conclude that during all chemical changes atoms rearrange to form new substances.

Marina86 [1]3 years ago

5 0

Answer:

Atoms rearrange to form new substances

Explanation:

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2 years ago

How many grams of H2 will be produced, given 27.4 g of Al to start with?

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3 years ago

I am having some trouble figuring out how to approach the following problem: A 75.0-mL volume of 0.200 M NH3 (Kb=1.8×10−5) is ti

Tanya [424]

<span>We look at the end of the day:

n(HNO3) added = 0.500*17.0/1000 = 0.00850 mol
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3 years ago

View Available Hint(s) Check all that apply. Hydrogen bonding occurs when a hydrogen atom is covalently bonded to an NN, OO, or

Sauron [17]

Answer:

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Explanation:

A hydrogen bond does not occur in all hydrogen containing compounds. Hydrogen bonds only occur in those compounds where hydrogen is bonded to a highly electronegative element such as fluorine, oxygen or nitrogen.

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3 years ago

An someone help me with this

valina [46]

2)c

3)b

4)c

5)a

hope this helps!!!

6)a

7)c

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3 years ago

Read 2 more answers