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sergiy2304 [10]
2 years ago
13

Approximately 50% of our bone is chemically calcium phosphate, Ca3(PO4)2

Chemistry
1 answer:
yuradex [85]2 years ago
4 0
Yea ion know i just want sun point lol o m g is it rekutten ;)
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The shape of a molecule is tetrahedral. How many lone pairs are most likely on the central atom?
kvv77 [185]
The number of lone pairs that are most likely found on the central atom is zero. There are no lone pairs found on the central atom.
8 0
3 years ago
Read 2 more answers
A small amount of a solid is added to water. The observation made after fifteen minutes is shown in the figure. Which of these s
natulia [17]

Answer:

B) sand

Explanation:

A) Oil is a wrong choice because it is a liquid not a solid and also if it is oil, it will float over the water surface as a droplets.

B) Sand is the right choice, because sand is a solid and it does not dissolve in water and stabilizes at the bottom.

C) Sugar is a wrong choice, because small amount of sugar will dissolve in water and be a homogeneous solution and does not appear as a particles.

D) Wood ships is also a wrong choice, even it is a solid and does not dissolve in water, but it will float over the water surface.

4 0
3 years ago
Protons Ha and Hb in the compound given are _________. homotopic enantiotopic diastereotopic mesotopic none of these
jek_recluse [69]

Protons Ha and Hb in the compound given are enantiotopic.

<h3>What are enantiotopic protons?</h3>

Enantiotopic protons can be defined as those protons that can be replaced by another groups like deuterium.

<h3>What is a compound?</h3>

A compound is a substance which contains two or more elements chemically combined together.

So therefore, Protons Ha and Hb in the compound given are enantiotopic.

Learn more about enantiotopic protons:

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8 0
2 years ago
A student tests two solutions with the same acid-base indicator. If the two solutions have different hydroxide ion concentration
sammy [17]
The answer is c the indicator will have different colors in the different solutions
 
8 0
3 years ago
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A stock solution of 1.00 M Fe2(SO4)3 is available. How many milliliters are
Andrews [41]

Answer:

375 mL

Explanation:

M1*V1 = M2*V2

M1 = 1.00 M

V1 = ?

M2 = 0.750 M

V2 = 0.500 L

1.00 M * V1 = 0.750 M * 0.500 L

V1 = 0.750*0.500/1.00 = 0.375 L = 375 mL

5 0
3 years ago
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