Which reactions are oxidation-reduction reactions? check all that apply.
2na+ cl2 → 2naci
pb(oh)2 → pbo + h2o
cu + 2agno3 → cu(no3 h + 2ag
znbr2 + 2agno3 → 2agbr + zn(no3)2
ch, +202 -co2 +h20

Look at the reaction below: ca(hco3)2 --> caco3 + co2 + h2o first, balance the reaction. once balanced, use dimensional analysis or another method to find out how many moles of carbon dioxide will be produced if we start with 16.5 moles of calcium bicarbonate (calcium hydrogen carbonate). = mol of co2 number needs to be reported to three significant figures.

Which orbitals form a pi bond? a.the s orbital and three p orbitals b.the s orbital and two p orbitals c.overlapping p orbitals d.overlapping hybrid orbitals

How air particles exert a pressure on the inside of the balloon