Explanation:
Safety hazards means they are are the unsafe working conditions which can cause the workmen injury, illness, or death. Safety hazards are some of the most common risks at the workplace.
Electrical hazards may be defined as a place or a condition which is dangerous and where a person working can come in contact with electrical contact with some energized equipment or any electrical conductor. There is always danger or a chance for the workmen to get injury or get a flash burn while working.
The safety steps are :
1. Follow the instruction properly
2. Take proper safety measures like wearing gloves, shoes, not touching any live wires, etc.
3. Follow the clean up procedure properly.
Answer:
1s2 2s2 2p6 3s2 3p6 3d6
Explanation:
We are required to determine the electron configuration of Fe²⁺
We need to know that;
Atomic number of Iron (Fe) is 26
- Therefore, electron configuration of Iron (Fe) atom is [Ar] 3d64s2 or 1s2 2s2 2p6 3s2 3p6 4s2 3d6
- Fe²⁺ is a cation that is formed when a an atom of Fe loses two electrons
- Therefore;
Fe²⁺ will have 24 electrons
- Hence, the atomic configuration of Fe²⁺ is given by 1s2 2s2 2p6 3s2 3p6 3d6 since the two electrons are removed from the 4s2.
Thus, electron configuration of Fe²⁺ is 1s2 2s2 2p6 3s2 3p6 3d6
For a Forty miles above the earth's surface, the temperature at 250k and the pressure at only 0.20 torr, the density of air at this altitude is mathematically given as
d=3.732*10{-4}g/l
<h3>What is the density of air at this altitude?</h3>
Generally, the equation for the ideal gas is mathematically given as
PV=(m/mw)RT
Therefore
d=m/v
d=26,664*20/83.14*250
d=0.37152
d=3.732*10{-4}g/l
In conclusion, the density
d=3.732*10{-4}g/l
Read more about Temperature
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Answer:
<h2>FALSE</h2>
Explanation:
fire is non-living thing due to the fact that fire does not exihibit the eleven characteristics of life ( MR NIGER CADL )
Another reason is that fire is not made of cells. All living organisms are and must be made of cells. Although fire needs oxygen to burn, this does not mean it is living.
A and D is the correct answer for this question.