Which statement describes the structure of an ionic compound? It is a giant lattice of positive ions in a ‘sea’ of electrons.
It is a giant lattice of oppositely charged ions.
It is a giant molecule of oppositely charged ions.
It is a simple molecule of oppositely charged ions.

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

Cucl2 + 2nano3 cu(no3)2 + 2nacl what is the percent yield of nacl if 31.0 g of cucl2 reacts with excess nano3 to produce 21.2 g of nacl? 49.7% 58.4% 63.6% 78.7%

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder