Chem 103 QUESTIONS AND ANSWERS 100 VERIFIED A GUARANTEED

Chem 103 QUESTIONS AND ANSWERS 100%
VERIFIED A+ GUARANTEED

1). Element

 Ans: A pure substance made of only one kind of atom


2). Compound

 Ans: Substance formed from many atoms bonded together


3). Mixture

 Ans: A combination of two or more substances that are not chemically combined


4). Substance

 Ans: matter with a composition that is always the same


5). What does a mean in an isotope?

 Ans: Number of Protons and Neutrons


6). What does z mean in an isotope?

 Ans: Number of Protons


7). What does x mean in an isotope?

 Ans: Symbol for the element


8). Ionic compound

 Ans: Cation + Anion / Metal + nonMetal


9). Polyatomic ion



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,  Ans: an ion made of two or more atoms joined by covalent bonds


10). Binary compounds

 Ans: Compounds composed of nonmetal + nonmetal


11). Acids

 Ans: compounds that form hydrogen ions when dissolved in water (FORMULA
CONTAINS AT LEAST ONE H+ ION)


12). Binary acid naming

 Ans: hydro___ic acid


13). Oxyacid

 Ans: contains hydrogen, oxygen, and a third nonmetal element


14). Oxyacid naming rules (anions)

 Ans: Anion:
1. hypo__ite
2. ___ite
3. ___ate
4. per___ate


15). Oxyacid naming rules (acids)

 Ans: Acid:
1. hypo___ous acid
2. ___ous acid
3. ___ic acid
4. per___ic acid


16). Oxidation state

 Ans: Number of electrons an atom uses to form bonds


17). Oxidation state rules



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