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balu736 [363]
3 years ago
9

Which nuclear reactor unit had core damage first? How do you know?

Chemistry
1 answer:
Vsevolod [243]3 years ago
6 0

Answer:

In the core.

Explanation:

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How salt solution can be determined by using hydrometer​
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Answer:

Salt solution may be calculated by measuring the specific gravity of a sample of water using a hydrometer.

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4 years ago
Which of these is indication that a chemical reaction has occurred?
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B.melting of a substance
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3 years ago
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Match these items.
notka56 [123]
Litmus is an indicator
Charged particles are ions
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Now, I have to take issue with the last one
A base of pH 14 is not a strong base, it would be a highly concentrated base. A strong base is a base that completely deionizes in water.

But technically, for the purpose of your answer strong base = pH 14
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3 years ago
As the mass of a sample increases, the number of moles present in the sample
vivado [14]

Answer:

increases

Explanation:

4 0
4 years ago
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A solution contains 35 grams of KNO3 dissolved in 100 grams of water at 40°C. How much more KNO3 would have to be added to make
Marta_Voda [28]

Answer:

32g

Explanation:

potassium nitrate has solubility of about 67g per 100g of water at 40°C, which means that potassium nitrate solution will contain 67g of dissolved salt for every 100g of water.

since at this temperature, our solution contains  35g of potassium nitrate 100g  of water. The solution will be unsaturated because of the less potassium nitrate.

to make saturated solution,

mass of potassuim nitrate = 67g - 35g

= 32g

which means dissolving another  32g  of potassium nitrate in solution at 40 °C will make saturated solution.

5 0
3 years ago
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