DojaCat

07.04.2021 • 

Chemistry

Help me plz ill give alot oQuestion 1 (2 points) Na + H2O → NaOH + H2

What is the molar ratio of the balanced chemical reaction?

a
1,2,1,2
b
2,2,2,1
c
1,1,1,1
d
2,1,1,1
Question 2 (3 points)
Na + H2O → NaOH + H2

You produce 28 grams of hydrogen gas from the above reaction. What is the maximum mass in grams of sodium hydroxide also produced? (Hint: You will need a balanced chemical equation.)

a
1120 grams NaOH
b
28 grams NaOH
c
0.7 grams NaOH
d
40 grams NaOH
Question 3 (5 points)
Na + H2O → NaOH + H2

You react 80 grams of sodium with excess water. How many molecules of hydrogen gas are produced?f point to you if u can answer this in 15 min plz help me

Ответ:

mcky65

03.01.2021

Chemistry

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E=n⋅h⋅ν (energy = number of photons times Planck's constant times the frequency), if you divide the energy by Planck's constant, you should get photons per second. Eh=n⋅ν → the term n⋅ν should have units of photons/second.

Explanation:

Hope this helps

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