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kompoz [17]
3 years ago
9

When Na + O2 --> Na2O is balanced, what coefficient is in front of the Na?

Chemistry
1 answer:
Flauer [41]3 years ago
5 0

Hey there!

Na + O₂ → Na₂O

Balance O.

2 on the left, 1 on the right. Add a coefficient of 2 in front of Na₂O.

Na + O₂ → 2Na₂O

Balance Na.

1 on the left, 4 on the right. Add a coefficient of 4 in front of Na.

4Na + O₂ → 2Na₂O

Our final balanced equation: 4Na + O₂ → 2Na₂O

Hope this helps!

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Fofino [41]

Answer;

-Prohibited from use by OSHA

Explanation;

-Carbon tetrachloride is a clear and colorless liquid with an odor similar to that of chloroform.It is employed as a chemical reagent for a number of purposes, as a raw material in chemical manufacture and is, used very widely as a reagent to extinguish fires.

-It volatizes very easily, is a non-conductor of electricity and, as noted above, freezes at very low temperatures.

-It is effective, due to the blanketing effect of its vaporized fumes, on many Class B or volatile, flammable liquid fires and because it will mix with certain volatile, flammable liquids and form a non-burning combination.


5 0
3 years ago
What is the gram formula mass of Glycine , NH2CH2COOH
dem82 [27]
N=14
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6 0
3 years ago
How many half lives would pass if a mass of copper-66 decayed for 51 minutes? The half life of Cu-66 is 5.10 minutes.
Sveta_85 [38]
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4 0
3 years ago
Differentbetween sound and vibration​
Fiesta28 [93]

Answer:

Both are similar concepts.

Sound is the vibration of air particles (compression and expansion) the can reach your ears. But you can have vibration being propagated in liquids and solids as well.

Some sounds are generated in structures, so the vibration of a structure is converted to sound in air — for instance, a loudspeaker.

Explanation:

6 0
3 years ago
A piece of asphalt has a volume of 5.0 cm3 and a mass of 7.5 g. What is the density of the asphalt?
strojnjashka [21]
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