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The nuclear particle that is described by the symbol, e, is a(n)

How many grams of nickel would be electroplated by passing a constant current of 7.20 amperes through a solution of NiSO4 for 90.0 minutes? (Ni: 58.69 g/mol)

The standard enthalpy of reaction, ΔH°rxn, for the reaction, CaO(s) + SO3(g) → CaSO4(s)is -401.5 kJ mol−1. Determine the value of ΔE°rxn for this reaction.

Using the standard reduction potentials Mg2+(aq) + 2 e- ] Mg(s)-2.37 VNO3(aq) + 4 H+(aq) + 3 e- NO(g) + 2 H2O+0.96 VCalculate the value of E°cell for the cell with the reaction: 3 Mg(s) + 2 NO3-(aq) + 8 H+(aq) → 3 Mg2+(aq) + 2 NO(g) + 4 H2O

The electrode for which the standard reduction potential of 0.00 V is assigned uses the half-reaction:

A galvanic cell is composed of these two half-cells, with the standard reduction potentials shown: Fe2+(aq) + 2e- Fe(s)-0.44VAl3+(aq) + 3e- Al(s)-1.66VWhat is the standard free energy (ΔG°) change for the cell reaction of this galvanic cell?

The rest mass of a proton is 1.0072764666 u and that of a neutron is 1.0086649158 u. The 19F nucleus weighs 18.9984032 u. Calculate the mass defect of the nucleus in amu.

CO2 can react with OH-, forming HCO3-. In this reaction,

Rhenium186 is a β-emitter with a half-life of 90.0 hours. How long would it take for the activity in a sample of this isotope to decay to exactly one-third of its original value?

An electrolysis cell has two electrodes. Which statement is correct?