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Secure https//session.masteringchemistry.com/myct/itemView2offset-next8assignmentProblemiD-88982150 Chagter 11 Homework Acid and Base Formulas e previous 8 of 10 next US Acid and Base Formulas Part A es There are conventions for naming and constructing the formulas for acids and bases just as there are for other types of compounds What is the chemical formula for the base cobat(ll) hydroxide? Express your answer as a chemical formula. Hints ome nts There are three main rules for naming acids, as shown in the table For example, an acid that contains a hydrogen ion and an acetate anion is Type of acid ngs gsHydrogen ion Change nonmetal ending Nonmetal anion to ic acid Hydrogen ion No prefix Polyatomic ion Change polyatomic ion ending in ate ending to ic acid Submit My Answers Give Up Part B Hydrogen ion No prefix Polyatomic ion Change polyatomic ion ending in ite ending to ous acid The formula for the selenate ion is Se04 Predict the formula for selenic acid Express your answer as a chemical formula. There is one main rule shown in the table for naming bases. For example, a base that contains a sodium ion and a hydroxide lon is called sodium hydraxide Hints Type of base Metal ion Hydroxide ion Naming convention Metal name followed by hydroxide :18 PM 12/1/2017

Explanation / Answer

A)
cobalt has symbol Co
and given its oxidation state is +3

hydroxide ion has symbol OH-
and its oxidation state is -1

so, 3 OH- ion will react to 1 Co+3 to form Co(OH)3
as per reaction
Co + 3OH- --> Co(OH)3

Answer : Co(OH)3
B)
SeO4-2 has two negative charge
it must had losses 2 H+ ion
so, salinicacid is H2SeO4

Answer : H2SeO4

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