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svp [43]
3 years ago
6

Box 1

Chemistry
2 answers:
Alex73 [517]3 years ago
7 0

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

learn more:

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Vinvika [58]3 years ago
6 0

Answer:

its 10 thats al i got

Explanation:

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4 years ago
An object has a density of 2.9 grams/cm^3 and a mass of 45.6 grams. Calculate the objects volume.
ikadub [295]

Answer:

<h2>15.72 cm³</h2>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density} \\

From the question we have

mass = 45.6 g

density = 2.9 g/cm³

volume =  \frac{45.6}{2.9}   \\ = 15.724137

We have the final answer as

<h3>15.72 cm³</h3>

Hope this helps you

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Explanation:

Have a nice day :)

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