3 years ago

PLEASE HELP FAST!!! Which is a characteristic of colloids?

Chemistry

2 answers:

Kazeer [188]3 years ago

8 0

Answer:

the answer is D. Are made up of at least two

Explanation:

took the test on edge

Morgarella [4.7K]3 years ago

3 0

D because the 2 substances are made up using colloids

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Step 1 : convert given masses into moles.

Moles of C = $\frac{\text{ given mass of C}}{\text{ molar mass of C}}= \frac{1.71g}{12g/mole}=0.142moles$

Moles of H = $\frac{\text{ given mass of H}}{\text{ molar mass of H}}= \frac{0.287g}{1g/mole}=0.287moles$

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For C = $\frac{0.142}{0.142}=1$

For H = $\frac{0.287}{0.142}=2$

The ratio of C: H = 1: 2

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