Question

Jessie added 16 g of Substance A to 4 g of Substance B to obtain a certain amount of Substance C. Which statement is correct?

Substance A and Substance C have the same mass.
Substance B and Substance C have the same mass.
The mass of Substance C is twice the mass of Substance A.
The mass of Substance C is five times the mass of Substance B.

Answer 1

"The mass of Substance C is five times the mass of Substance B", the given statement is correct.

Answer: Option D

Explanation:

As Jessie added 16 gm. of Substance A to 4 gm. of Substance B Obtained certain amount of Substance C which can be calculated as follows:

amount of Substance C = Substance A + Substance B = 16 + 4 = 20 gm

Therefore, 20 gram of Substance C was obtained. Here, fourth statement is correct which says the mass of Substance C ifs five times the mass of Substance B to justify this, see the below:

Answer 2

"The mass of Substance C is five times the mass of Substance B", the given statement is correct.

Answer: Option D

Step-by-step explanation:

As Jessie added 16 gm. of Substance A to 4 gm. of Substance B Obtained certain amount of Substance C which can be calculated as follows:

amount of Substance C = Substance A + Substance B = 16 + 4 = 20 gm

Therefore, 20 gram of Substance C was obtained. Here, fourth statement is correct which says the mass of Substance C ifs five times the mass of Substance B to justify this, see the below:

`\frac{\text { amount of Substance } \mathrm{C}}{\text { amount of Substance } \mathrm{B}}=(20)/(4)=5 times`