How many hydrogen atoms Is needed for C2H2 to become saturated

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration?

This element exists in adundance in the sun.explain how you would go about capturing sunlight.would this captured sunlight contain any of the element?

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