Which of the following pairs of reactants is likely to produce a pure metal when the
reactants react together?
a na3po4(aq) + mg(no3)2(aq) →
b al(s) + cucl2(aq) →
c mg(s) + o2(g) →
d cl2(aq) + ki(aq) →

19. at high pressures, how does the volume of a real gas compare with the volume of an ideal gas under the same conditions, and why? eman- it is much less because real gas partides are not moving. there is no difference because the gas laws are always obeyed. it is much less because at high pressures the temperature drops. it is much greater because real gas partides take up space.

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.