4 years ago

Water that is on land. Some sources are rain or melting snow.

1 answer:

6 0

Runoff from snowmelt is a major component of the global movement of water, possibly even if you live where it never snows.

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WITCHER [35]

Answer:a

Explanation:bc

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3 years ago

Wewaii [24]

We have to round off each measurement to the number of significant figures.

The correct answers are: 265.9, 0.00045 and 65 respectively.

265.991 when expressed in 4 significant figure it rounds off as 265.9 because 265.9 represents the value 265.991.

0.0004513 when expressed in 2 significant figure it rounds off as 0.00045 because zero before and after decimal are not significant.

6593 when expressed in 2 significant figure it rounds off as 65.

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3 years ago

Ivahew [28]

Move the plant away from the window for now.

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3 years ago

AnnZ [28]

<u>Answer:</u> The number of moles of NaCl in the solution are 0.0875 moles.

<u>Explanation:</u>

To calculate the number of moles of NaCl, we use the equation that is used to calculate molarity, which is:

$\text{Molarity of the solution}=\frac{\text{Moles of solute}}{\text{Volume of solution (in L)}}$

We are given:

Molarity of NaCl solution = 0.35 mol/L

Volume of solution = 250 mL = 0.250 L (Conversion factor: 1L = 1000 mL)

Putting values in above equation, we get:

$0.35mol/L=\frac{\text{Moles of NaCl}}{0.250L}\\\\\text{Moles of NaCl}=0.0875mol$

Hence, the number of moles of NaCl in the solution are 0.0875 moles.

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4 years ago

mariarad [96]

The Bonding in a water molecule is best described as : Polar Covalent

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2 years ago