What is the function of the cell nucleus found in both plant and animal cells

1. to produce energy
2. to control cell activity
3. to remove waste products
4. to allow molecules to enter the cell

When would a bouncy ball have the most potential energy

The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride

Which of the following is not true about the atomic model of substances?