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Andrew [12]
3 years ago
8

If you have 15g of sodium carbonate, what mass of sodium is present in that sample?

Chemistry
1 answer:
Sati [7]3 years ago
5 0

Answer: 6.75 g

Explanation:

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The combustion of ammonia in the presence of excess oxygen yields no2 and h2o: 4 nh3 (g) + 7 o2 (g) â 4 no2 (g) + 6 h2o (g) the
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The answer would be 118.68 g.
Explanation for this is:4 moles of NH3 give 4 moles of NO2 
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3 years ago
Box 1
Alex73 [517]

10g

Explanation:

Box 1, Mass of A = 10g

Box 2, Mass of B = 5g

Box 3, = 1A + 1B

Unknown:

Mass of B that would combine with mass of 20g of A

Solution:

   Mass ratio of A to B:

   \frac{mass of A}{mass of B} = mass ratio

           \frac{10}{5} = mass ratio

        The mass ratio of A to B = 2: 1

Now, number of B that will combine with 20g of A;

       

           \frac{mass of A}{mass of B} = mass ratio

               \frac{20}{mass of B} = \frac{2}{1}

                     Mass of B = 10g

10g of B would combine with 20g of A

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3 years ago
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Rocky objects that are massive enough will have a spherical shape due to the force of gravity. (no links or else I will report y
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“About 300 kilometers across have irregular shapes because their internal gravity is not strong enough to compress the rock into a spherical shape” so I’m guessing it’s false ?
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Can anyone help me on this please.
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Using GRIGNARDS REAGENT convert methane to ethanol
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J

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