Jack tries to place magnets on his refrigerator at home, but they won’t stick. What could be the reason?

Which is mostly likely why many scientists reject the cold fusion theory

Write a balanced equation showing the formation of copper (ii) nitrite from its elements

Which one of the following is an oxidation-reduction reaction? naoh + hno3 --> h2o + kno3 naoh + hno3 --> h2o + kno3 so3 + h2o --> h2so4 cacl2 + na2co3 --> caco3 + 2 nacl ch4 + 2 o2 --> co2 + 2 h2o al2(so4)3 + 6 koh --> 2 al(oh)3 + 3 k2so4