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Snezhnost [94]
3 years ago
14

Balance the equation. Mg3(PO4)2+? C → ? Mg3P2+? CO , using the smallest possible integers. What is the sum of the coefficients i

n the balanced equation?1. 14.
2. 16.
3. 12.
4. 18.
5. 22.
Chemistry
1 answer:
Nuetrik [128]3 years ago
8 0

Answer:

Sum of coefficients in balanced equation is 18

Explanation:

Unbalanced equation: Mg_{3}(PO_{4})_{2}+C\rightarrow Mg_{3}P_{2}+CO

Balance O: Mg_{3}(PO_{4})_{2}+C\rightarrow Mg_{3}P_{2}+8CO

Balance C: Mg_{3}(PO_{4})_{2}+8C\rightarrow Mg_{3}P_{2}+8CO

Balanced equation:Mg_{3}(PO_{4})_{2}+8C\rightarrow Mg_{3}P_{2}+8CO

Sum of coefficients in balanced equation = (1+8+1+8) = 18

So, option (4) is correct.

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1. Use your knowledge of valence electrons and how they affect bonds to figure out how carbon (Group 14) and oxygen (Group 16) w
erik [133]

From the fact that oxygen is in group 16 and carbon is in group 14, the structure of CO2 must be O=C=O. In methane, there is no bond between any of the hydrogen atoms. The structure of H2O2 is H–O–O–H.

Carbon is in group 14 hence it has four valence electrons and oxygen is in group 16 hence it has six valence electrons. This implies that each oxygen atom will share four electrons with carbon in a covalent bond to form the structure O=C=O.

In CH4, we know that carbon is tetravalent so it forms for bonds. Therefore, there is no bond between hydrogen atoms so it bonds with each hydrogen atom; hydrogen only forms one bond.

In H2O2, there is the peroxide ion that has the structure O-O. Hence, the correct structure of H2O2 is H–O–O–H.

Learn more: brainly.com/question/24775418

5 0
2 years ago
10 points!
Alik [6]

I believe that it is all of the above.

"A Scientific Hypothesis Must Be "Falsifiable". A scientific hypothesis must be testable, but there is a much stronger requirement that a testable hypothesis must meet before it can really be considered scientific."

I hope this helped, have a nice day!

6 0
3 years ago
Read 2 more answers
Please help I need these answers
Burka [1]

Answer:

2 a

element pure form cannot broken down

3 b

Chemical change chemical R×N

(R×N = reaction)

4c homogeneous solution

Yield = Yield (reaction yield): A measure of a chemical reaction's efficiency, as a ratio of moles of product to moles of reactant. Usually expressed as a percentage. % Yield = Moles of product.

Explanation:

5 0
2 years ago
A gas occupies 800ml at a temperature of 27C. What is the volume at 132C?
pishuonlain [190]

V
1
​
/T
1
​
=V
2
​
/T
2
​

(900.0 mL) / (300.0 K) = (x) / (405.0 K); x = 1215 mL.

Change the 900 to 800, and the 300 to 27, then change the 405 to 132. And solve
3 0
3 years ago
Is kingdom more specific taxon than family?
Eva8 [605]
Yes the kingdom is more specific
5 0
3 years ago
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