![]() We have one "stickied" post for each exam and score release day, contain all test day discussion/reactions to that thread only.ĭo not discuss any specific information from your actual MCAT exam. For an example format for submitting pictures of questions from practice material click hereĭo not link to content that infringes on copyright laws (MCAT torrents, third party resources, etc).ĭo not post repeat "GOOD LUCK", "TEST SCORE", or test reaction posts. These are considered spoilers and should be marked as such. ![]() Be nice to each other, hating on other users won't help you get extra points on the MCAT, so why do it?ĭo not post any question information from any resource in the title of your post. Rudeness or trolling will not be tolerated. Please message the moderators with your skills/ideas! MCAT RESOURCES & INFO Study Groups Want to help us improve this subreddit or tell us about a new resource we can add to the sidebar? Below you will find our forum rules, resources, and more. We request that you read the sidebar COMPLETELY before you post. r/MCAT is a place for support, discussion, advice, social networking, news, study tips and more. The MCAT (Medical College Admission Test) is offered by the AAMC and is a required exam for admission to medical schools in the USA and Canada. Therefore, because of this compound, a precipitate will form in the course of this reaction.Welcome to the BEST place for MCAT prep and practice materials. According to Rule #5, that sulfides tend to be insoluble. A precipitate of this compound will not form. The products of the reaction must be examined if either of the substances formed in the reaction is insoluble, a precipitate will form.Ĭonsidering NaNO 3, Rule #3 states that nitrates tend to be soluble. Predict whether a precipitate will form as a result of this reaction:ĢAgNO3+Na2S→Ag2S+2NaNO3(1)(1)2AgNO3+Na2S→Ag2S+2NaNO3 Which of these substances is likely to form a precipitate?Įxplain why some salts are soluble in water whilst other salts are insoluble. You are unsure whether you have a solution of barium nitrate or lead nitrate in an unlabelled flask, outline reactions you would perform to determine which of the two salt solutions you have present. Fluorides such as BaF 2, MgF 2, and PbF 2 are frequently insoluble.Phosphates such as Ca 3(PO 4) 2 and Ag 3PO 4 are frequently insoluble. ![]() Group II carbonates (CaCO 3, SrCO 3, and BaCO 3) are insoluble, as are FeCO 3 and PbCO 3.Arsenic, antimony, bismuth, and lead sulfides are also insoluble. Most sulfides of transition metals are highly insoluble, including CdS, FeS, ZnS, and Ag 2S.Hydroxide salts of transition metals and Al 3+ are insoluble.Hydroxide salts of Group II elements (Ca, Sr, and Ba) are slightly soluble.Hydroxide salts of Group I elements are soluble.Important exceptions to this rule include CaSO 4, BaSO 4, PbSO 4, Ag 2SO 4 and SrSO 4 . AgNO 3 and Ag(C 2H 3O 2) are common soluble salts of silver virtually all others are insoluble. Exceptions to this rule are halide salts of Ag +, Pb 2+, and (Hg 2) 2+. Salts containing Cl –, Br –, or I – are usually soluble.Salts containing nitrate ion (NO 3 –) are generally soluble.Salts containing the ammonium ion (NH 4 +) are also soluble.Salts containing Group I elements (Li +, Na +, K +, Cs +, Rb +) are almost always soluble.The list below is something you build an intuition for, rather then going in a rote memorizing. Here is a more comprehensive list of your solubility rules! Remember, the NAGSAG acronym is sufficient for your HSC chemistry exams. Ever wondered how on earth you would remember your solubility rules for the HSC? Look no further then NAGSAG.
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