Which of the following is an oxidation-reduction reaction? Which of the following is an oxidation-reduction reaction? Ca(s) + 2 HI(aq) → CaI2(aq) + H2(g) LiCl(aq) + AgNO3(aq) → AgCl(s) + LiNO3(aq) HI(aq) + NaOH(aq) → NaI(aq) + H2O(l) Pb(C2H3O2)2(aq) + 2 LiI(aq) → PbI2(s) + 2 LiC2H3O2(aq) All of the above are oxidation-reduction reactions.

Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.

What is the correct lewis dot structure for arsenic?