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4 years ago

15

How are natural elements different from other elements ?

1 answer:

MAVERICK [17]4 years ago

3 0

Synthetic elements are man-made elements. ... Synthetic elements are unstable chemical elements and they are not naturally found on the earth. These elements are synthesized in the laboratory. All of them are unstable and radioactive in nature, which means they emit radiations and decay into other elements.

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The formula for ammonium carbonate:

Dima020 [189]

Ammonium is NH₄⁺ and Carbonate is CO₃⁻² => Ammonium Carbonate is (NH₄)₂CO₃

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4 years ago

How many moles are present in 100 grams of potassium?

spayn [35]

Answer:

39.0983.

Explanation:

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3 years ago

The picture below shows a flower experiencing phototropism, a type of growth movement.

lakkis [162]

The correct answer is A

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Carbon-12 and carbon-14 are isotopes of carbon. Scientists can compare the ratio of

AlladinOne [14]

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I'm pretty sure the answer is B.

Explanation:

I hope this helps

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3 years ago

A scuba diver that ascends to the surface too quickly can experience decompression sickness, which occurs when nitrogen that dis

Butoxors [25]

Answer:

The factor that will change the volume of the diver's lungs upon reaching the surface is 4

Explanation:

Given data:

Pressure increases 1 atm = 101.325 kPa

34 ft = 10.3632 m

Depth of 102 ft = 31.0896 m

Question: What factor will the volume of the diver's lungs change upon arrival at the surface, V₂/V₁ = ?

The pressure at 31.0896 m:

$P_{1} =101.325+(\frac{31.0896}{10.3632} *101.325)=405.3kPa$

The factor will the volume of the diver's lungs change upon arrival at the surface:

$\frac{V_{2}}{V_{1} } =\frac{P_{1}}{P_{2}} =\frac{405.3}{101.325} =4$

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3 years ago