How Earthquakes affect buildings
Negative charge
(+1)+(0)+(-1)+(-1)= -1
Answer is: four iron atoms <span>are reacting with every three molecules of oxygen.
Balanced chemical reaction: 4Fe + 3O</span>₂ → 2Fe₂O₃.
From chemical reaction: n(Fe) : n(O₂) = 4 : 3.
Ratios of atoms of iron and molecules of oxygen is 4 : 3..
There is four atoms of iron and six atoms of oxygen on both side of reaction.
It can help support the explanation of the origin of the universe
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.
