From the given list of formulas of substances write down the formulas: a) alkalis; b) bases insoluble in water: H2S, LiOH, NiO, Fe (OH) 2, Sr (OH) 2, Cu (OH) 2, KOH, Cr (OH) 3, NaH, RbOH. Name the substances whose formulas you wrote out
a) LiOH – lithium hydroxide, KOH – potassium hydroxide, Sr (OH) 2 – strontium (II) hydroxide, RbOH – rubidium hydroxide.
b) Fe (OH) 2 – iron (II) hydroxide, Cu (OH) 2 – copper (II) hydroxide, Cr (OH) 3 – chromium (III) hydroxide.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.