Answer:
Give the chemical formula of:
1. Al3+ and OH- = As the hydroxide ion (OH− ) will receive a subscript of 3, we need to put the the OH in brackets and put the 3 outside the brackets. This is so that the 3 multiplies everything in the brackets. The formula is therefore Al(OH)3 A l ( O H ) 3 .
2. Al3+ and HCO3- = tIons can be categorized by their charge and by how many atoms are in the ion. Cations are positively charged atoms, while anions are negatively charged. Monatomic ions are made of one element, while polyatomic ions are made of multiple elements.
3. Co2+ and HCO3- = The first species shown is the cobalt (II) cation with a +2 charge: Co2+
