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katrin2010 [14]
3 years ago
5

Does the Atomic Mass tell you how many protons are in an element or does the Atomic Number tell you how many protons are in an e

lement??
Chemistry
1 answer:
Bad White [126]3 years ago
8 0
The answer is Atomic Number. I hope this helps. :)
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N2(g) + 3H2(g) →2NH3(g)
monitta

Answer:

2.5 moles of N₂ and 7.5 moles of H₂ entered the reaction

Explanation:

In reaction:

N₂(g) + 3 H₂(g) → 2 NH₃(g)

You can see that the stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction) requires the following amounts of reagents and are produced:

  • N₂: 1 mole
  • H₂: 3 moles
  • NH₃: 2 moles

The following three rules can apply:

  • If 2 moles of NH₃ are produced from 1 mole of N₂ by stoichiometry of the reaction, 5 moles of NH₃ from how many moles of N₂ are produced?

moles of N_{2} =\frac{5 moles of NH_{3} *1 mole of N_{2} }{2 moles of NH_{3}}

moles of N₂= 2.5

  • If 2 moles of NH₃ are produced from 3 moles of H₂ by stoichiometry of the reaction, 5 moles of NH₃ from how many moles of H₂ are produced?

moles of H_{2} =\frac{5 moles of NH_{3} *3 mole of H_{2} }{2 moles of NH_{3}}

moles of H₂= 7.5

<u><em>2.5 moles of N₂ and 7.5 moles of H₂ entered the reaction</em></u>

6 0
3 years ago
which of the following compounds would be expected to be hard and brittle and to have a high melting point
yawa3891 [41]
Ionic compounds is your answer
5 0
4 years ago
a chemical spill gets into the soil and effects the plants within a forested ecosystem. explain why the top predators would be m
notka56 [123]
Well if we think about a food pyramid there are consumers that eat plants and if there are no plants to eat then those primary consumers die. Which means that the secondary consumers have no prey to eat and die as well, eventually leading to the top predators who have absolutely nothing to feed on.
They are the most affected because energy level decreases the higher up you go so the top predators need to eat more and if there is less and less to eat they die out quicker
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3 years ago
Read the hypothesis below. Hypothesis: if a steel surface is wet with water, then the friction will be reduced, which question b
Anna71 [15]

Answer:

how will water affect the force of friction

90% sure

6 0
3 years ago
"Which of the following processes takes place in the cytosol of a eukaryotic cell?" View Available Hint(s) Which of the followin
Rufina [12.5K]

Answer:

The correct answer is Glycolysis.

Explanation:

Glycolysis is a catabolic process that deals with the breakdown of glucose by 10 enzyme catalyzed steps to generate the end product pyruvate.

      Glycolysis take place in the cytosol of an eukaryotic cell because the concentration of glucose and enzymes that catalyzes the break down of glucose remain significantly high in the cytosol.

         

6 0
4 years ago
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