Answer:
the l sign means the substance in the chemical equation is a liquid. (hope this helped : D )
<u>Electromagnet</u> - the strong magnetic field produced inside a solenoid can be used to magnetize a piece of magnetic material like soft iron when placed inside the coil. the magnet so formed is called electromagnet. the magnetic effect remains only till the current is flowing through the solenoid.
<h3>
<u>Uses</u><u> </u><u>of</u><u> </u><u>electromagn</u><u>et</u></h3>
electromagnet is used in electric bells
electromagnet is used in electric motors electromagnet is used in telephone diagrams
electromagnet is used in for sorting scrap metals
Hope it helps u
B. Electrons because
A - Protons always remain constant. They decay over a LONG period of time and don't do anything.
B - it is correct because they do all the bonding.
C - It's not a subatomic particle
D - Neutrons are not involved in bonding as well.
In order to balance reactions, the number of each element must be the same on the left and right side. If I have 3 of element X on one side, I must have 3 of element X on the other side. That being said:
Zn + Fe(NO3)2 —> ZnNO3 + Fe
I have two NO3 groups on the left, so I will add a coefficient of 2 in front of the compound which has an NO3 group on the right side.
Zn + Fe(NO3)2 —> 2ZnNO3 + Fe
Since I now have 2 Zn’s on the right, and only 1 on the left, I will add a coefficient of 2 in front of Zn on the left.
2Zn + Fe(NO3)2 —> 2ZnNO3 + Fe
Lets check:
Zn: 2 right, 2 left (correct)
Fe: 1 right, 1 left (correct)
NO3 groups: 2 right, 2 left
We have successfully balanced the equation. :)
