3 years ago

Can someone help me balance these chemical equations?

Chemistry

2 answers:

coldgirl [10]3 years ago

7 0

What equations ?
If you post them I can help!

nordsb [41]3 years ago

6 0

I can’t see the equations

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Calculate the mass percent (m/m) of a solution prepared by dissolving 51.56 g of NaCl in 164.2 g of H2O. Express your answer to

denis-greek [22]

Answer:

"23.896%" is the right answer.

Explanation:

The given values are:

Mass of NaCl,

= 51.56 g

Mass of H₂O,

= 165.6 g

As we know,

⇒ Mass of solution = $Mass \ of \ (NaCl+H_2O)$

= $51.56+164.2$

= $215.76 \ g$

hence,

⇒ $Mass \ percent =\frac{Mass \ of \ NaCl}{Mass \ of \ solution}\times 100$

$=\frac{51.56}{215.76}\times 100$

$=23.896 \ percent$

4 0

3 years ago

Please help!

Afina-wow [57]

False.
False.
True.
If you need more explaination just let me know!

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4 years ago

What type of reaction produces a precipitate?

Pavlova-9 [17]

The correct answer is C.

Most of the time, double replacements produce one product that is soluble and one that is insoluble

This results in a precipitate within a liquid or aqueous solution

Hope this helps

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4 years ago

A test tube can be used to hold

Andrej [43]

What grade is this? I forgot but if u tell me the grade i can prob remember

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3 years ago

I NEED HELP PLEASE! (Made it worth A LOT of points!!!)

Scilla [17]

Answer:

the third one.

Explanation:

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3 years ago