The symbol below is used to represent what component in a circuit?

a.) ac power source
b.) dc power source
c.) switch
d.) resistor

Asolution is made by dissolving 25.5 grams of glucose (c6h12o6) in 398 grams of water. what is the freezing point depression of the solvent if the freezing point constant is -1.86 °c/m? show all of the work needed to solve this problem.

What overall charge must all compounds have

Gymnast always perform on padded mats. how does the mats protect the gymnast