Which elements form alloys:

a) alkali metals
b) transition metals
c) alkaline earth
d) halogen metals

coordination number of pt in [ptcl(no2)(nh3)4]so4 is:

a) 2
b) 4
c) 1
d) 6

the presence of cro4 ions can be detected by:

a) lead nitrate
b) barium chloride
c) sulphuric acid
d) all of the above

What is a metal replacement reaction

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume

Which of the following statements is true about energy quantization at the atomic level? electrons in the outermost orbits are the most stable. electrons in all the orbits around the nucleus have the same amount of energy. electrons in the orbit closest to the nucleus have the least amount of energy. electrons absorb or release the same amount of energy independent of the energy levels.