E=hf is the answer gotta run now hope the best for yall
Answer:
7.54%
Explanation:
A hydrate is a salt that has molecules of water incorporated into the crystals. It is represented by the molecular formula of the salt followed by how many molecules of water it has: XY.nH₂O.
So, the mass of water in the sample will be the difference between the hydrate and the salt without water:
mass of water = 1.034 - 0.956 = 0.078 g
The mass percentage is the mass of water divided by the total mass, and then multiplied by 100%:
(0.078/1.034)x100%
7.54%
iron Bars form a solenoid when wrapped in a coil by a current carrying copper conducting wire .
copper coils generate a magnetic field when a current is passed through the coil . according to the helmholtz law.
The third one beacuse if you count all the atoms of every one you will find that one the left side, you have 3 h and on the right you have 2 h