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Grace [21]
2 years ago
11

20 How do you solve this ?

Chemistry
1 answer:
Kaylis [27]2 years ago
5 0

Answer:

eight oxygen atoms

Explanation:

This formula shows that in one mole of this compound, there are 3 moles of Ca atoms that combine with 2 moles of the PO4(phosphate) groups, which gives a total of 2 moles of P atoms and 8 moles of 0 atoms.

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What is the role of gluons?
igor_vitrenko [27]

The role of the gluons is to bind together the quarks that make up protons and neutrons. That is option D.

<h3>What are gluons?</h3>

Gluons are those particles found within an atom that are responsible for binding protons and neutrons together inside the nucleus of an atom.

The gluons are capable of binding the protons and neutrons together by holding together the quarks that makes up protons and neutrons.

These gluons are known to carry a color-anticolor charge which makes up the 9 types of gluons which include:

  • red anti-red,

  • red anti-blue,

  • red anti-green,

  • blue anti-red,

  • blue anti-blue,

  • blue anti-green,

  • green anti-red,

  • green anti-blue, and

  • green anti-green.

An atom is the smallest indivisible part of an element that can take part in a chemical reaction.

The proton is the positive particle of an atom which is found within the nucleus.

The neutron is the particle that is found in the nucleus of an atom which doesn't have any charge.

Learn more about atom here:

brainly.com/question/1805828

#SPJ1

8 0
2 years ago
A. Which reactant is the limiting reagent?
Tasya [4]

Answer:

a. Zinc is the limiting reactant.

b. m_{ZnBr_2}^{by\ Zn}=162.61gZnBr_2

c. m_{Br_2}^{leftover}=6.6g

Explanation:

Hello there!

a. In this case, when zinc metal reacts with bromine, the following chemical reaction takes place:

Zn+Br_2\rightarrow ZnBr_2

Thus, since zinc and bromine react in a 1:1 mole ratio, we can compute their reacting moles to identify the limiting reactant:

n_{Zn}=47.2g*\frac{1mol}{65.38g} =0.722molZn\\\\n_{Br_2}=122g*\frac{1mol}{159.8g} =0.763molBr_2

Thus, since zinc has the fewest moles we infer it is the limiting reactant.

b. Here, we compute the grams of zinc bromide via both reactants:

m_{ZnBr_2}^{by\ Zn}=0.722molZn*\frac{1molZnBr_3}{1molZn} *\frac{225.22gZnBr_2}{1molZnBr_2} =162.61gZnBr_2\\\\m_{ZnBr_2}^{by\ Br_2}=0.763molBr_2*\frac{1molZnBr_3}{1molBr_2} *\frac{225.22gZnBr_2}{1molZnBr_2} =171.95gZnBr_2

That is why zinc is the limiting reactant, as it yields the fewest moles of zinc bromide product.

c. Here, since just 0.722 mol of bromine would react, we compute the corresponding mass:

m_{Br_2}^{reacted}=0.722molBr_2*\frac{159.8gBr_2}{1molBr_2} =115.4gBr_2

Thus, the leftover of bromine is:

m_{Br_2}^{leftover}=122g-115.4g\\\\m_{Br_2}^{leftover}=6.6g

Best regards!

8 0
3 years ago
|||Good points and Brainliest||| Explain the biological pump <br> (have at least 3 sentences pls)
Ber [7]

Answer:

The biological pump or the marine carbon pump is the title for multiple processes leading to separation of carbon from multiple sources of water. Biological pumping is partially responsible for the cycling of organic matter. This process can lead to loss of contact between carbon and the atmosphere for thousands of years.

Hope this helped!

6 0
3 years ago
What is a flame test?
Svetlanka [38]

Answer:

B. A method of obtaining an emission spectrum from a sample

Explanation:

5 0
2 years ago
Read 2 more answers
It is desired to determine the concentration of arsenic in a lake sediment sample by means of neutron activation analysis. The n
Artyom0805 [142]

Answer:

The daughter nuclide is selenium; 76:34 Se

Explanation:

The complete question is as follows;

is desired to determine the concentration of arsenic in a lake sediment sample by means of neutron activation analysis. The nuclide 75:33 As captures a neutron to form 76:33 As, which in turn undergoes beta decay. The daughter nuclide produces the characteristic gamma rays used for the analysis. What is the daughter nuclide?

solution:

Please check attachment for decay equations and explanations

5 0
3 years ago
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