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vovikov84 [41]
2 years ago
7

...................................​

Chemistry
1 answer:
Damm [24]2 years ago
8 0

\huge\underline\mathtt\colorbox{cyan}{B. 100 ml of water}

10 gm salt in 100 ml water- let its concentration be x

We want 2x(A. T. Q)

For decreasing concentration, we need higher solvent(water here)

x= 100ml

2x=2(100)ml

We already had 100 ml

So 200-100=100

100ml is correct

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Check my answers please? Only 5...Will reward medal to best answer and perhaps become a fan! :)
stellarik [79]
The correct answer is <span>Fusion Curve</span>
5 0
3 years ago
Problem PageQuestion A chemist makes of magnesium fluoride working solution by adding distilled water to of a stock solution of
igomit [66]

Answer:

5.37 × 10⁻⁴ mol/L

Explanation:

<em>A chemist makes 660. mL of magnesium fluoride working solution by adding distilled water to 230. mL of a 0.00154 mol/L stock solution of magnesium fluoride in water. Calculate the concentration of the chemist's working solution. Round your answer to 3 significant digits.</em>

Step 1: Given data

  • Initial concentration (C₁): 0.00154 mol/L
  • Initial volume (V₁): 230. mL
  • Final concentration (C₂): ?
  • Final volume (V₂): 660. mL

Step 2: Calculate the concentration of the final solution

We want to prepare a dilute solution from a concentrated one. We can calculate the concentration of the final solution using the dilution rule.

C₁ × V₁ = C₂ × V₂

C₂ = C₁ × V₁ / V₂

C₂ = 0.00154 mol/L × 230. mL / 660. mL = 5.37 × 10⁻⁴ mol/L

5 0
3 years ago
Which of this is not an effect of humans using a natural recourse?
katen-ka-za [31]

Answer:

it can allow more room for additional living things in the habitat

Explanation:

Use water for an example.

- Taking water can destroy a fish habitat.

- Using excess water can cause water to run out.

- Taking/using water leaves less amounts for others/organisms.

Taking water does not allow additional room for organisms in a habitat.

5 0
3 years ago
Select the correct answer.
solong [7]
I think it’s A but I’m not sure, if it’s wrong I’m sorry
7 0
3 years ago
Another name for chemical change
elena-14-01-66 [18.8K]
Another name for chemical change would be chemical reaction.
8 0
4 years ago
Read 2 more answers
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