Describe how you could show by adding aqueous sodium hydroxide and aqueous ammonia that a solution contained zinc ions. Result with sodium hydroxide
Excess sodium hydroxide
Result with aqueous ammonia
Excess aqueous ammonia

Evaluate this exponential expression,8. (2 + 3)2 – 42

Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon