Two elements, with the chemical symbols A and X, react together to form a compound. The compound is made up of A2+ ions and A2- ions. State whether each element is a metal or non-metal.
Element A: ……………………………………………………………………………………..< br /> Element X: ……………………………………………………………………………………..

After watching the video "zinc strip in copper nitrate solution", and reading the instructions, click on the link labeled "start" just below the drawing of the pencil tip. follow the direction to complete the 3x3 grid. answer the below questions for the portion of the activity in which sn(s) is placed in agno3(aq)

How might this scientific phenomena be explained? a paper clip floats on water.

Nitrogen dioxide decomposes according to the reaction 2 no2(g) ⇌ 2 no(g) + o2(g) where kp = 4.48 × 10−13 at a certain temperature. if 0.70 atm of no2 is added to a container and allowed to come to equilibrium, what are the equilibrium partial pressures of no(g) and o2(g)