chromium is a transition metal with an electron configuration of 1s^ 2 2s^ 2 2p^ 6 3s^ 2 3p^ 6 4s^ 1 3d^ 5 can chromium form an with th + 3 charge?

They are like other investigations? say there was a murder u have to do blood test and finger prints which run through a lab. 

Are there any options that could alot..

According to arrhenius theory of acid and bases, an acid is a proton donor, while base donates hydroxyl ions. further, acid and base reacts to form salt and water.consider following example.hcl    +      h2o          →      cl-          +      h3o+here, hcl has donated a proton, hence it is an acid.now consider following reactionhcl      +      naoh            ↔      nacl      +        h2oin this reaction, hcl donates proton, hence it is acid. on other hand, naoh donates hydroxyl ion (i.e. hence it is a base.   

Silicon  6.0x10^23 is avogadro's number so the answer has to be 1 mole of whatever it is. since the molarity of silicon is equal to 28g/mol, this has to be the answer because 28g of si is 1 mole of si.