Calcium (ca) is iron form elements
Forest fire release pollutants like smoke, sulphur dioxide, nitrogen dioxide, ozone, particulate matter and carbon monoxide into the atmosphere. The bigger the bushfire, the bigger emissions.
One of the major lab accidents was of fire when a gas was exposed to heat.
<u>Explanation:</u>
The mishaps or the accidents that take place in the laboratory while experimenting are known as the laboratory accidents. Some of the laboratory accidents are chemical spills, fire or explosion, personal injuries and so on.
One of the major lab accidents was of fire when methane gas was exposed to heat. Because of this it led to fire during the experiment. At the time of the experiment, the personal protective equipment worn were the lab gloves, lab coat and the protective eye care. To avoid such kind of accidents, more care and attention should be paid while experimenting. It should be made sure that there are proper equipment in case any accident takes place.
Answer:
8.31moles of H2O
Explanation:
Avogadro's hypothesis gives us an excellent understanding that 1mole of any substance contains 6.02x10^23 molecules. This means that 1mole H2O also contains 6.02x10^23 molecules.
Now, if 1 mole of H2O contains 6.02x10^23 molecules
Therefore, Xmol of H2O will contain 5.00x10^24 molecules i.e
Xmol of H2O = (5.00x10^24)/6.02x10^23 = 8.31moles of H2O