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3 years ago

what happens to the density of an object when the volume of that object increases and the mass remains the same?

Chemistry

1 answer:

Dima020 [189]3 years ago

6 0

Answer:

d=m/v If v increases then the density decreases. Denominator get larger

Explanation:

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What is the purpose of the piece of filter paper inside the 400 mL beaker?

Natalka [10]

Answer:

The purpose of a filter paper inside a beaker is to retain the suspended solid particles found in the solution.

The retention capacity of the filter paper will depend on the size of the pores of the filter. Thus, for example, if the pores of the filter have a diameter of 1 mm, particles with a diameter greater than 1 mm will be retained, and the rest of the solution will pass through the pores.

The removal of impurities through filters is a physical separation process.

7 0

3 years ago

Look at the diagram. De both lemas and humans have the traits listed at point D? Explain your reasoning

Bogdan [553]

Answer:

WHAT DIAGRAM THX FOR POINTS THO

Explanation:

3 0

3 years ago

The ion MnOis often used to analyze for the Fe2+ content of an aqueous solution by using the (unbalanced) reaction Mno+Fe2+ + Fe

dusya [7]

Answer:

B) 0.230 M

Explanation:

The first step is to balance the reaction between the Ferrous ion and the permanganate ion:

$5~Fe^+^2~+~MnO_4^-^1~+~8H^+~->~5Fe^+^3~+~Mn^+^2~+4H_2O$

Then we have to calculate the moles of $MnO_4^-$ :

$M~=~\frac{mol}{L}$

$mol~=~M*L$

$mol~=~0.033~M*0.0633L=~0.002088~mol~MnO_4^-$

Then using the molar ratio we can find the moles of $Fe^+^2$ :

$0.002088~mol~MnO_4^-\frac{5~mol~Fe^+^2}{1~mol~MnO_4^-}=0.01044~mol~Fe^+^2$

Finally we can calculate the molarity:

$M=\frac{0.01044~mol~Fe^+^2}{0.0455~L}=0.230~M$

5 0

3 years ago

__Ca +__ H20- _Ca(OH)2 + _H2

astra-53 [7]

Answer: 44

Explanation: Because its easy

7 0

3 years ago

Constructive and destructive process.

Aleks [24]

Answer:

again here

Explanation:

Collection and analysis of data indicate that constructive forces include crustal deformation, faulting, volcanic eruption and deposition of sediment, while destructive forces include weathering and erosion. I can explain how constructive and destructive forces affect the nature of landforms on Earth.

Please mark as brainliest

8 0

3 years ago