3 years ago

Can Chlorine be harmful to any of the earth’s ecosystems? If so how?

1 answer:

8 0

Answer:

Although chlorine itself usually does not cause environmental harm, it combines rapidly to form chemicals such as dioxins that pollute water, contaminate fish and transfer to humans and larger animals that eat the fish.

Explanation:

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A rectangular metal bar has a volume of 50.0 in³. The bar weighs 1.42 kg. Calculate the density of the metal in

Olegator [25]

You would do M divided by V= D and the answer is 0.0284

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If 6.89 g of CuNO3 is dissolved in water to make a 0.460 M solution, what is the volume of the solution?

Readme [11.4K]

3.67 grams is the volume of the solution

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3 years ago

Calculate the volume in mL of a 0.708 M KOH solution containing 0.098 mol of solute

Olenka [21]

Molarity = mol/liter

0.708M = 0.098mol/L
Rearrange to find L:
0.098mol/0.708M = .138L

For every liter there is 1000 mL:
.138L • 1000mL =138mL KOH

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4 years ago

If there are 7 moles of copper dissolved in 15 moles of zinc to make 22 moles of a brass solution. What is the mole fraction of

iragen [17]

Mole fraction of copper is 7/22

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3 years ago

60 POINTS

Juli2301 [7.4K]

Answer:

PBr3 - Molecule , Polar

N2H2 - Molecule , (Polar in E- form and Non- polar in Z form)

C2H2 - Molecule , Non- Polar

N2 - Molecule , Polar

NCl3 - Molecule , Polar

SiF4 - Molecule , Non- Polar

NH3 - Molecule , Polar

F - Not- Molecule (atom)

H2 - Molecule and Non- Polar

Explanation:

Molecule : these are group of two or more atoms joined by strong force of attraction.

H2 is non- polar because it is homoatomic molecule.(made up of same element)

N2 is non- polar because it is homoatomic molecule.

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3 years ago