4 years ago

What is the relationship between the distance between objects and the gravitational force between them

Chemistry

1 answer:

Leokris [45]4 years ago

3 0

Answer: the gravitational pull decreases as the object's distance increases

Explanation:

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A student pipets 10 ml of a 0.0693 m solution of kbr into a 500 ml volumetric flask and dilutes to the mark. what is the concent

Sonja [21]

The initial concentration of solution is 0.0693 M. The volume of solution taken is 10 mL and it is diluted to a final volume of 500 mL.

According to dilution law, the product of initial concentration and volume is equal to the product of final concentration and volume as follows:

$C_{1}V_{1}=C_{2}V_{2}$

Here, $C_{1}$ is initial concentration, $C_{2}$ is final concentration, $V_{1}$ is initial volume and $V_{2}$ is final volume.

Rearranging to calculate final concentration,

$C_{2}=\frac{C_{1}\times V_{1}}{V_{2}}$

Putting the values,

$C_{2}=\frac{0.0693 M\times 10 mL}{500 mL}=0.001386 M$

Therefore, concentration of the resulting solution is 0.001386 M.

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3 years ago

Determine whether the following statement is TRUE (T) or FALSE (F).

Alenkasestr [34]

Answer:

I say the statement is true

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3 years ago

Which the following atoms will not react with water? a. K b. Li c. Pb d. Na

Veseljchak [2.6K]

B. Li thats the anwser

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3 years ago

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What is the mass of a sample of water that takes 2000 kJ of energy to boil into steam at 373 K. The latent heat of vaporization

Arte-miy333 [17]

Answer:

0.89kg

Explanation:

Q=mL L=specific latent heat

Q=energy required in J

m=mass in Kg

Q=mL

m=Q/L

m=2000000J/2.25 x 10^6 J kg-1

m=0.89kg

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3 years ago

PLEASE HELP ME a) b) c) or d)?

PilotLPTM [1.2K]

Answer:

D / 15.0 g

Explanation:

3 % volume thus shows that there are 3 g of an solute in every 100mL of solutions

.. there will be 3 × 5000÷ 100 of H2O2 in a 500 mL bottle

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3 years ago