Molar mass SiO2 = 28 + 32 = 60
<span>so moles sand = 3.4 x 10-7 / 60</span>
Cause the color of a mineral can change do to chemical reaction like rust on iron
Answer: 13.42g
Explanation:
1mole of carbon =12g
1mole (12g) of carbon contains 6.02x10^23 atoms.
Therefore, Xg of carbon will contain 6.73x10^23 atoms i.e
Xg of carbon = (12x6.73x10^23)/6.02x10^23 = 13.42g
Answer: 100 degrees Celsius and 212 degrees Fahrenheit.
Answer:
Wood consists mainly of organic substances (99% of the total mass). Elemental chemical composition of wood of different breeds is practically the same. Absolutely dry wood on average contains 49% of carbon, 44% of oxygen, 6% of hydrogen, 0.1-0.3% of nitrogen. When burning wood remains its inorganic part - ash.
So the answer is flammability because wood is flammable.
