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MaRussiya [10]
3 years ago
12

I need help in Question 5and6 in science The subject is science

Chemistry
1 answer:
spin [16.1K]3 years ago
3 0
Option
A)
and
C)
just cross check with somet
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Lyrx [107]

Answer:

hello

Explanation:

I am good and you , hope your doing great lol

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3 years ago
How would you prepare 100.0 mL of 0.400 M CaCl2 from a stock solution of 2.00 M CaCl2?
Sever21 [200]

Answer:

Measure 20mL of the stock

Explanation:

All we need to do is to find the volume of the stock solution needed. This is illustrated below:

C1 = 2M

V1 =?

C2 = 0.400 M

V2 = 100mL

C1V1 = C2V2

2 x V1 = 0.4 x 100

Divide both side by 2

V1 = ( 0.4 x 100) /2

V1 = 20mL

Therefore, to prepare the solution, we will measure 20mL of the stock solution and make it up to the 100mL mark.

4 0
3 years ago
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What type of reaction is this?<br><br><br><br> N2 + 3H2 → 2NH3
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What kind of chemical bonds are represented by the product in the following diagram?
katovenus [111]
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A 55 kg person on Earth has the __________mass on the moon.
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Answer:

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