To draw a Lewis structure for a
polyatomic ion, begin by
calculating A, the available
electrons, and N, the needed
electrons.
What is N for ClO3^- the chlorate ion?

-be a crystalline solid

- be soluble in water

-conduct electricity

hope this : )

- aluminum and copper chloride.

- the chloride ion to separate the aluminum from the oxygen so that the aluminum can react with the copper ions (and the water molecules).

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.

i think so it’s will be b yes i believe its