Answer:
A. electric current is continuous and static electricity is not continuous
Explanation:
Electric current is a continuous flow of electrons. For example, through a circuit.
Static electricity is the movement of charges (like electrons) from one object to another. For example, when you rub your feet on carpet and then touch a doorknob, that's static electricity. The electrons move from your body to the doorknob, resulting in a shock, and then they stop.
Hope that helps.
Answer: the solution 1.0 M Ca Br2.
This is becasue the freezing point depression is a colligative property.
A collegative property is one that depends on the number of particles in solution.
Each mole of KBr will produce two moles, one mole of potassium ion and one of bromine ion
Each mole of CaBr2 will produce three moles, one of calcion ion and two of bromine ion.
Then, the depression of the frezzing point will be greater in the case of the CaBr2, leading to a lower freesing point of the 1.0 M soluction.
A) can enter from the surroundings, but cannot escape to the surroundings
