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.
1 Use your right hand if you are taking out the right lens. 2  With the opposite hand, gently pull down the lower lid with your middle finger. 3  Use the thumb and index finger to gently push the contact toward the nose, until it lifts out of the eyeball. 4  Place the contact in the palm of your hand.here are different types of contacts, but most people wear soft lenses. These lenses are thin and usually feel comfortable on your eye. Soft contacts can be worn once and thrown out or reused for weeks or months, depending on the type of contact lenses you buy.