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Chem 101 Exam 2

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juniperk's version from 2016-10-23 05:19

Section

Question Answer
Name the 7 diatomic (molecular) elementsBromine, Iodine, Nitrogen, Chlorine, Hydrogen, Oxygen, and Fluorine
Name the first 4 subshell lettersS, P, D, F
What is the formula for ammonium?NH^4+
What is the formula for nitrite?NO2-
What is the formula for nitrate?NO3-
What is the formula for Hydroxide?OH-
What is the formula for bicarbonate?HCO3-
What is the formula for sulfite?SO3^2-
What is the formula for sulfate?SO4^2-
What is the formula for carbonate?CO3^2-
What is the formula for oxalate?C2O4^2-
What is the formula for phosphate?PO4^3-
What compounds will contain both metals and non-metals, or at least one polyatomic ion?Ionic
What compounds will contain only non-metals?Molecular
What will always include the (aq) symbol beside the formula, and the name will include the word acid?Acid
Ionic compounds do not use the prefixes di-, tri-, etc; if you see these, the compound must be?molecular
If the compound ends in -ate, -ite, etc., there must be a polyatomic ion, therefore the compound is?ionic
How do you name an Ionic compound? 1. Name the positive ion (metal or polyatomic) first 2. Name the negative ion (nonmetal or polyatomic) second. If the negative ion is a nonmetal, change the ending to -ide. DON’T change the ending of polyatomic ion names!
How do you name a Molecular compound?1. Name each of the nonmetals, in the same order as the formula. 2. Add prefixes to tell how many atoms of each nonmetal are present. However, ONLY use the prefix mono- with oxygen, and only if it is the final element in the formula.
How do you name the acid if the acid is H and another element (or a polyatomic ion not containing oxygen)? a. Start with the prefix hydro- b. Name the second element, and change the ending to -ic c. Add the word Acid
How do you name the acid if the acid is H and a polyatomic ion containing oxygen?a. Name the polyatomic ion and change the ending i. If the ion ends in -ate, change the ending to -ic ii. If the ion inds in -ite, change the ending to -ous b. Add the word Acid
What is the law of definite proportions?States that a compound is always composed of the same proportions of elements by mass
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