An atom with 3 protons and 4 neutrons will have a valency of
(1) 3 (2) 7 (3) 1 (4) 4

State two physical properties of ionic compound

1. explain hydrogen peroxide, h 2 o 2 properties and decomposition reaction. 2. describe how each of the following natural cycles plays a part in earth’s climate system. (a) the water cycle (b) the carbon cycle

Iwould appreciate if someone could me.