EXAMPLE 1 â Predicting Precipitation Reactions: Predict whether a precipitate will form when water solutions of silver nitrate, AgNO 3 (aq), and sodium sulfide, Na 2 S(aq), are mixed. If there is a precipitation reaction, write the complete and net ionic equation that describes the reaction. he following is a typical problem. Predict whether a precipitate will form when water solutions of silver nitrate, AgNO 3 (aq), and sodium sulfide, Na 2 S(aq), are mixed. If there is a precipitation reaction, write the complete and net ionic equation that describes the reaction.
Symptoms include: itching, burning, redness and swelling. Treatment may include antibiotic or anti-allergy eye drops. Contact lens rewetting and eye surface lubrication. If your eyes sometimes feel dry wearing contact lenses, choose eye drops specifically intended for use with contacts. Other drops could discolour your contacts or temporarily change their fit.
I can't wear contact lenses. Yes, you can! Thanks to advances in contact lens technology in recent years, just about everyone can wear contacts. For example, there are now bifocal contact lenses for people with presbyopia, and toric soft lenses that correct astigmatism. contact lens will get lost behind my eye. Nope! A thin membrane called the conjunctiva covers the white of your eye and connects to the inside of your eyelids, making it impossible for a contact lens to get lost behind your eye.