Answer:
Sodium metaborate: sodium+boron+oxygen= NaBO 2.
The formula can be written also as Na 2O·B
Explanation:
Answer:A Metallic and covalent
Explanation:
Hope this helps.
Answer:
Cu^2+ (aq) + S^2- (aq) --> CuS (s)
Explanation:
Break up all the soluble compounds into their constituent ions to get the complete ionic equation, and cross off the ones that appear the same on both sides:
Cu (aq) + 2Cl(aq) + 2Na (aq) + S (aq) --> CuS (s) + 2Na (aq) + 2Cl (aq)
2Cl and 2Na appear on both sides of the arrow, so cross those out to get the net ionic equation.
Using the formula Density = Mass / Volume,
Mass = Density x Volume
Mass = 2.75 x 8 = 22g