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VashaNatasha [74]
3 years ago
12

SCIENCE/// What or who can best reduce negative impacts of disasters

Chemistry
2 answers:
Ivahew [28]3 years ago
8 0

Answer:

I don't think so that there is anything that can reduce negative impact of disaster.

STatiana [176]3 years ago
5 0

Answer:

it damage our home,field

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When 8.0 grams of sodium hydroxide is dissolved in sufficient water to make 400. mL of solution, what is the concentration of th
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Answer:

The concentration of this sodiumhydroxide solutions is 0.50 M

Explanation:

Step 1: Data given

Mass of sodium hydroxide (NaOh) = 8.0 grams

Molar mass of sodium hydroxide = 40.0 g/mol

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Step 2: Calculate moles NaOH

Moles NaOH = mass NaOH / molar mass NaOH

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Step 3: Calculate concentration of the solution

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Concentration solution = 0.20 moles / 0.400 L

Concentration solution = 0.50 M

The concentration of this sodiumhydroxide solutions is 0.50 M

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