Which reaction is a single replacement reaction?
2h2 + o2 → 2h2o
2h2o2 → 2h2o + o2
koh + hcl → kcl + h2o
cu + 2agno3 → 2ag + cu(no3)2

It has been two weeks since charles met with daniel, a dietitian, who provided charles with a menu for weight loss. charles and his mother are going back to see daniel again with a chart of the food charles has eaten. the following lists what charles ate in one day: breakfast 1 banana, 1 cup of nonfat milk, 1 egg lunch 1 cup of carrots, 3 oz of steak, 1 apple, 1 cup of nonfat milk dinner 6 oz of skinless chicken, 1 baked potato, 3 oz of broccoli, 1 cup of nonfat milk

For each of the following types of reactions, write a general reaction formula in the symbolic form—for example, a + b → ab. single-displacement double-displacement synthesis decomposition

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from