If barium (metal) has two valence electrons while chlorine (nonmetal) has seven, how many barium atoms are needed to form an ionic bond with chlorine?

A certain ore is 37.3% nickel by mass how many kilograms of this ore would you need to dig up to have 10.0g of nickel

876 millimeters to meters

Coffee is a solution of organic substances in water. is it a mixture or compound

Elements beyond number ___on the periodic table are radioactive

Why does electronic waste that is generated in developed nations get dumped in developing nations?||

Ocean constitutes most of ___ of water a) Evaporation b) Precipitation c) Condensation d) Transpiration e) Sublimation Don't choose a random letter.

In the reaction, Zn + HCl-> ZnCl2 + H2, 25 grams Zn are reacted with 17.5 grams HCl. How many grams of H2 will be produced? A. 0.382 g of H2 B. 0.479 g of H2 C. 0.7865 g of H2 D. 0.484 g of H2

Is nail varnish soluble?

What is the periodic trend for atomic size from top and bottom in a group? From left to right in a period?

Which planets' orbits is the belt located between the main asteroid belt?