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hjlf
3 years ago
10

PLEASE HELPP!!

Chemistry
1 answer:
s344n2d4d5 [400]3 years ago
4 0

Answer:

The answer is C

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A substance that has high reactivity
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A. easily combines chemically with other substances is your answer.
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In a controlled experiment, the factor tested is called the A. constant. B. independent variable. C. dependent variable. D. cont
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How much salt (NaCl) is carried by a river flowing at 30.0 m3/s and containing 50.0 mg/L of salt? Give your answer in kg/day.
ser-zykov [4K]

Answer:

129,600kg/day

Explanation:

The river is flowing at 30.0m^{3}/s

1m^{3}/s = 1000L

Multiply by 1000 to convert  to L/s

flowrate of river = 30*1000 =30,000L/s

Convert L/s to litre per day by multiplying by 24*60*60

flowrate of river = 30,000 * 24*60*60 L/day

                     = 2,592,000,000L/day

if the river contains 50mg of salt  in 1L of solution

lets find how many mg of salt (X) is contained in 2,592,000,000L/day

X= \frac{ 2,592,000,000*50}{1}

X= 129,600,000,000 mg/day

convert this value to kg/day by multiply by 10^{-6}

X= 129,600kg/day

7 0
4 years ago
Why do ionic compounds have better solubility in water than molecular compounds?
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Ionic compounds help to conduct electricity in water, as they are charge carriers. ... Ionic compounds are also more soluble in water than covalent compounds. This is because water dissolves polar substances, which is the consistency of the ionic compound, whereas covalent compounds are non-polar.
8 0
4 years ago
1) Write the symbol and charge for each individual ion
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N -3

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S -2

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CaI2

MgS

Al2S3

//

I don't really understand 2.

3 0
3 years ago
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