Which type of bond occurs when atoms complete their outermost electron shells by sharing electrons?
O ionic
O covalent
hydrogen
O van der Waals

Which of the following happens during cell division? (a) energy is created (b) waste is eliminated (c) carbon dioxide is released (d) damaged cells are replaced

Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10×1010). if her stock has a good year and gains $3.20 billion (3.20×109) in value, what is her new net worth?

What is the work done by the electric force to move a 1 c charge from a to b?