What is the number of electrons in the highest occupied energy level of an element in group 5a?
a. 5
b. 3
c. 8
d. 18

Suppose that during that icy hot lab 65,000 j of energy were transferred to 450 g of water at 20°c what would have have been the final temperature of the water

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

In 2002, the rare earth elements mine in mountain pass, california was closed because