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Chemistry Unit 3 Exam Study Guide

Mrs. Weimer

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Across
5.binary molecular formula for potassium pentachloride
6.BaI2 is an example of a ___ compound
8.6.02*10^23
9.types of ions that have names ending in -ide
10.prefix for nine
11.lithium and fluorine make a _____(2 words)
15.compounds that are chemical formulas with the cation on the left and the anion on the right (2 words)
17.molar mass (in grams) of Chlorine gas (Cl2)-rounded
18.CuSO4 is an example of a _____ compound
22.N2O5
24.the ion that aluminum (in group 3A) makes
25.sulfurous acid
26.molar mass of (NH4)2 CO3
Down
1.Ca(H2 PO4)2 is the correct formula for this compound
2.group 2A elements form ions when they lose___electrons
3.when -ate or -ite is at the end of a compound it indicates that the compound is ___
4.in naming a binary molecular compound, the number of atoms is indicated by the ____
7.Ca2+ is an example of a _____(starts with c)
12.H3PO4 is the name of what acid
13.the name for an N3- ion
14.percentage composition of heptane (C7 H16) - without a percent sign
16.when dissolved in water, acids produce____ions
19.when naming an acid, the term hydro- is used when the name of the acid anion ends in -
20.the ion of Mn in Mn2 O3
21.iron (III) phosphate chemical formula
23.a compound containing lead (II) and Oxygen

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