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Rzqust [24]
3 years ago
14

Which two substances are among the six most abundant elements in living

Chemistry
1 answer:
denis23 [38]3 years ago
3 0

Answer:

nitrogen

Explanation:

Living organisms often contain trace amounts of several elements, but the most abundant ones are oxygen, carbon, hydrogen, nitrogen, calcium and phosphorus.

Oxygen. ...

Carbon. ...

Hydrogen. ...

Nitrogen. ...

Sulfur. ...

Phosphorus.

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Please answer this thanks!!...
Alex17521 [72]

Answer:sorry.

Explanation:

4 0
2 years ago
Which is stronger- the attractive forces between water molecules and chromium and chloride ions, or the combined ionic bond stre
Nutka1998 [239]

Answer:

When chromium chloride, CrCl2, is dissolved in water, the temperature of the water decreases. ... The attractive forces between water molecules and chromium and chloride ions is stronger, because the reaction is endothermic means the energy released in formation is less than the energy required in breaking bond.

6 0
3 years ago
6.(01.05 LC) Which states of matter change shape when moved?(2 points) Gases and solids Liquids and gases Liquids, solids, and g
Mrrafil [7]

Answer:Gases and solids , Solids and liquids​

Explanation:

A solid has a definite shape while liquids and gases take the shape of the container in which they are found .

Hence when a substance changes it's state from gas to solid or solid to liquid, it's shape automatically changes as explained above.

3 0
3 years ago
The atom with 69 neutrons and 50 protons has a mass number of
GalinKa [24]

Name: Tin

Symbol: Sn

Atomic Number: 50

Atomic Mass: 118.71 amu

8 0
3 years ago
Cyclic compound A has molecular formula C5H10 and undergoes monochlorination to yield exactly three different constitutional iso
RideAnS [48]

Answer:

A: 1,2-dimethylcyclopropane

Explanation:

The possible cyclic structure with formula C₅H₁₀ are shown in the image.

A is a cyclic compound. On monochlorination, A yields 3 products.

To have 3 products on monochlorination, there should be three different carbon atoms.

Considering structure 1, all carbons have same nature, thus only one product will be formed and thus not a structure of A.

Considering structure 2, there are two different carbon atoms, thus two different structure are formed and thus not a structure of A.

Considering structures 3 and 4 , there are four different carbon atoms, thus four products will be formed and either of them are not a structure of A.

Considering structure 5, there are three different carbon atoms,  thus three different structure are formed and thus the A is structure 5.

4 0
3 years ago
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