Answer:

Explanation:
Given
31.8 moles of water
Required
Determine the number of molecule
In standard units: 1 molecule of water is:

Multiply both sides by 31.8



Express 191.4996 as a standard form

Apply law of indices:


Approximate:

Diamonds and graphite are both made of carbon
Answer:
D. The sun has less gravitational pull on Pluto because it is farther away.
0.000169 mol/g citric acid
The atomic mass of
an element is calculated using its masses and the ratios of its
naturally occurring isotopes. The answer is number 3. The rest of the choices do not answer the
question above.