Which statement is about population density

Chemistry

1 answer:

Montano1993 [528]3 years ago

5 0

Explanation:

Population density is defined as the number of people present per square kilometre. Population density of India according to 2011 census is 382 persons per square kilometres.

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How does adding a non-volatile solute to a pure solvent affect the boiling point of the pure solvent?

belka [17]

The correct answer is the second statement. The solvent will have a higher boiling point. Adding a non-volatile solute to a pure solvent will increase the boiling point of the solvent. This solution exhibit colligative properties. Colligative properties depend on the amount of solute dissolved in a solvent. These set of properties do not depend on the type of species present.

7 0

4 years ago

For the reaction 2 A + 4 B → 2 C + 4 D, what is the absolute magnitude of the rate of change for [B] when [C] is increasing at 4

Hoochie [10]

Answer:

$r_B=9.6M/s$

Explanation:

Hello there!

In this case, according to the given chemical reaction, it is possible for us to relate the rate of formation of C and the rate of consumption of B as shown below:

$\frac{r_B}{-4}=\frac{r_C}{2} \\\\$