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The energy required to melt 13 kg of ice at 273k is 5040000 J
Explanation:
For solving this exercise, we are going to use the equation that relates the energy in Joules (E) with the Specific Latent Heat of Fusion (l) and the mass of ice (m):
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2NH3 + 3CuO———- 3Cu + 3H2O + N2
Answer:
B
Explanation:
I think B is false because you should communicate with all sorts of people, in order to learn different views/sides of something.
Question: Given the balanced equation representing a reaction:
2H2 + O2 ==>2H2O
What is the total mass of water formed when 8 grams of hydrogen reacts completely with 64 grams of oxygen?
(1) 18 g (3) 56 g
(2) 36 g (4) 72 g
Answer:
"72 gram" is the total mass of water formed when 8 grams of hydrogen reacts completely with 64 grams of oxygen
Explanation:
We will do stoichiometry in this kind of problem:
Therefore, the total mass of water formed is 72 g.
the 2 next the H indicates that there is two H is one molecule
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