Answer:
If you are asking why the atomic mass on the periodic table only goes to the hundredth's place, it is because of significant figures. No number is exact, like it can be 63.5500001, and it will go to a certain point before it cease to matter in experiments.
Answer:
Cac2 is a answer please mark me brainliest
Your answer would be C9H16
<span>Because you've added coefficients to the molecules on the right side of the equation, the number of oxygen atoms has changed. ...Add a coefficient of 5 to the oxygen molecule on the left side of the equation. ...<span>C3H8 + 5O2 --> 4H2O + 3CO2.</span><span>The carbon, hydrogen, and oxygen atoms are balanced</span></span>
Answer:
10.32 moles of ammonia NH₃
Explanation:
From the question given above, the following data were obtained:
Number of molecules = 6.21×10²⁴ molecules
Number of mole of NH₃ =?
The number of mole of NH₃ can be obtained as follow:
From Avogadro's hypothesis,
6.02×10²³ molecules = 1 mole
Therefore,
6.21×10²⁴ molecules = 6.21×10²⁴ / 6.02×10²³
6.21×10²⁴ molecules = 10.32 moles
Thus, 6.21×10²⁴ molecules contains 10.32 moles of ammonia NH₃
