Test: Chemistry
Which of the following are organic molecules?

A) organic B) inorganic
_____ NaCl
_____ Mg(NO2)3
_____ O2
_____ CH3CH2OH

Identify the following elements as:
A) Metal  B) Nonmetal     C) Semiconductor
_____ Co_____ C
_____ Ar_____ Ni
_____ Si_____ K

Identify the following compounds as:
A) Ionic  B) Covalent
_____ NaCl_____ Mg(NO2)3
_____ CO2_____ N2

_____ Which of the following compounds contains a polyatomic ion?
A) NaCl B) Mg(NO2)3 C) CO2 D) N2

_____ How many atoms are there in H2SO4?
A) 2 B) 3 C) 6 D) 7

_____ Which one has the most oxygen?
A) sulfate B) sulfite C) sulfide

_____ How many nitrogen molecules are in Mg(NO3)2?
A) 1 B) 2 C) 3 D) 6

_____ How many oxygen molecules are in Mg(NO3)2?
A) 2 B) 3 C) 6 D) 6

What is the charge on the cation in this molecule?:
A) +1B) +2 C) -1 D) -2
_____ KCl
_____ Fe2O3

_____ How many electrons are in each covalent bond?
A) 1 B) 2 C) 3 D) 4

_____ What is the formula of Copper(II) chloride?
A) CuCl B) Cu2Cl C) CuCl2 D) Cu2Cl2

_____ What is the formula of calcium flouride
A) CaF B) Ca2F C) CaF2 D) Ca2F2

Identify each of the following compounds as an:
A) alkane B) alkene C) alcohol
_____ isopropanol_____ butane
_____ ethane_____ methane
_____ something with a double bond

Which are biochemical compounds?
A) biochemical B) not a biochemical
_____ polystrene
_____ glucose
_____ nylon
_____ DNA

What is the name of these chemicals
NaCl _______________
CO2 _______________
Fe2O3 _______________

How many hydrogen atoms could be attached to this compound? (Draw them in.):


What is the formula of carbon tetrachloride?

What is the formula of water?

What is the empirical formula of C12H22O10?

Ionic bonds form between ___________ and _______________

Under what circumstances can ionic compounds conduct electricity?

What are the building blocks of proteins?

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