A metallic conductor moving at a constant speed in a magnetic field may develop a voltage across it. This is an example of Motional emf
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Answer: The 
value is 0.664
Explanation:
Distance travelled by solvent front = (7.7-1.45)cm = 6.25 cm
Distance travelled by unknown = (5.6-1.45) cm = 4.15 cm
The retention factor or the value is defined as the ratio of distance traveled by the unknown to the distance traveled by the solvent front.
Thus the value is 0.664
Answer:
A. Water
Explanation:
H2O means that there are two hydrogen and one oxygen in every water molecule.
Answer:
I belive its the acid anwser because it can make rust which is a chemical change
Explanation:
