The metals magnesium, zinc, copper and aluminium were respectively chosen to be either metal A or metal B in the following experiment. The voltage between two of the selected metals was measured. The table shows the results of the investigation. Which conclusion is correct, using the information given?Experiment Voltage / V111.101.10222.712.71333.873.87440.710.7155−2.71−2.71Experiment 3 could be zinc and magnesium.Experiment 4 shows the most difference in reactivity between the metals.Experiment 2 could be copper and magnesium.It is impossible to tell which pair of metals produces the results for experiment 5.

Metal X burns vigorously when heated in air, whereas metal Y burns only when heated very strongly . Which of the following is the correct descending order of reactivity of Metal X , metal Y , copper and magnesium . AMagnesium, metal X, metal Y , copper  BMetal X , magnesium , copper , metal YCcopper , metal Y , Metal X , magnesium DMetal X, magnesium , metal Y , copper

Which of the following is not a characteristic of metals?Group of answer choicesshinymalleablebrittleconducts electricty

2.To place metals in order of their reactivity, metals are reacted with water or _____ ___ and see which metals react the most/least

At 298 K, the standard electrode potentials of Mg2+/Mg, Ni2+/Ni, Cu2+/Cu and Au3+/Au are –2.36 V, –0.25 V, 0.34 V and 1.40 V respectivelyOn the basis of standard electrode potential, predict which of the following reactions can occur?

Decide whether a chemical reaction happens in either of the following situations. If a reaction does happen, write the chemical equation for it. Be sure your chemical equation is balanced and has physical state symbols.situation chemical reaction? chemical equationA strip of solid zinc metal is put into a beaker of 0.041M MgBr2 solution. yesnoA strip of solid magnesium metal is put into a beaker of 0.079M ZnSO4 solution. yesno