Based on the solubility rules, select the ionic compounds that are insoluble in water. Solubility Rules  Li+, Na+, K+, Rb+, NH4+ All salts containing alkali metal ions and the ammonium ion are soluble     NO3-, C2H3O2- All nitrates and acetates are soluble     Cl-, Br-, I- Most chloride, bromide, and iodide salts are solubleExceptions are Ag+, Hg22+, and Pb2+ which are insoluble     SO42- Most sulfate salts are solubleExceptions are Ca2+, Sr2+, Ba2+, and Pb2+ which are insoluble     CO32-, PO43-, CrO42- Most carbonates, phosphates, and chromate salts are insolubleExceptions are the Group IA elements and NH4+ which are soluble     OH- Most hydroxide salts are insolubleExceptions are Group IA elements and NH4+ which are solubleCa2+, Sr2+, Ba2+ are slightly soluble (considered to be insoluble)     S2- Most sulfide salts are insolubleExceptions are Group IA elements NH4+ and Ca2+, Sr2+, and Ba2+ which are soluble

How much of a 500.0 mg sample of a radioactive isotope is left after 5 half lives? mf = mi 12n{“version”:”1.1″,”math”:”mf = mi 12n”}

The electron configuration for Selenium (Se) is:

The electron configuration for Titanium (Ti) is:

Below is an incorrect Lewis Structure for carbon tetrafluoride (CF4).  Select the correct e

Which bond represent polar covalent bonds?

How many atoms does 3.2 mol of silver (Ag) contain? Given:  1 mol  = 6.022 x 1023 

Which statements about calcium metal (Ca) and zinc metal (Zn) are true?

The formula for disulfur trioxide gas is:

The VSEPR structure for oxygen difluoride is shown below.  The geometry about the central atom and the bond angle are: