The correct answer is B.
Lowering of the freezing point can be a colligative property. The greatest concentration of mass of salt in the water will have what we call the lowest freezing point.
For example the least amount of water in the greatest amount of salt.

3 0

3 years ago

Read 2 more answers

What in the world is this !

Olin [163]

Answer:

the symbol shows that the reaction is reversible

7 0

3 years ago

Calculate the mass of calcium carbide produced if 1770 kJ of heat is absorbed.

Flauer [41]

Answer:

$m=243.72g$

Explanation:

Hello,

For the given chemical reaction:

$CaO(s) + 3 C(s) \rightarrow CaC_2(s) + CO(g)$

Whose heat of reaction is 464.8 kJ/mol which means that energy is absorbed due to the chemical reaction, we can compute the moles of calcium carbide via the following relationship:

$n=\frac{1770kJ}{464.8 kJ/mol}\\ \\n=3.81mol$

Then, since the molar mass of calcium carbide is 64 g/mol, the yielded mass turns out:

$m=3.81mol*\frac{64g}{1mol}\\ \\m=243.72g$

Best regards.

7 0

3 years ago

Which abiotic factor would allow an ecosystem to support a relatively large amount of biotic factors?

Lena [83]

The abiotic factor that is quite used to support a relatively large amount of biotic factors is liquid(mostly water).

7 0

3 years ago