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.
Along with drops, ointments are the most common way to treat many eye problems. Because they go right into your eye, they can start to work much faster than a medicine you take by mouth. Eye ointments are drugs in a greasy, semisolid form. Your body warmth makes them melt. Once you apply ointment to your eye, it breaks into tiny drops. These hang out between your eyeball and eyelid for a while. Thatâs what gives the medicine time to work. Eye ointments are a safe treatment. Most people handle them well. But they might sting or make your sight blurry. Because of that, your doctor may suggest you use them right before bed. Why Do You Need It? You could be given eye ointment for a number of reasons.