Chemistry Smorgasbord

What is the difference between an ion and an isotope?

Which elements are diatomic?

What does the atomic number tell us about the structure of a particular atom?

What does the atomic mass tell us about the structure of a particular atom?

Electron shells

What is electronegativity?

Describe or illustrate the pattern of electronegativity across the periodic table.


You have 100 grams of magnesium oxide in a crucible.  How many moles are there?

How much would 4 moles of water weigh?

Balancing equations

Balance the following equations:

H2 + N2  ->  NH3

Ca(OH)2 + HNO3  ->  Ca(NO3)2 + H2O

Moles and Reactions

How many grams of NaCl would be produced from a reaction of 35 grams of sodium?


Give examples of a solution of...

...a solid and a liquid-

...several gases-

...a gas and a liquid-

...two or more liquids-



heterogeneous solution-

How many moles of NaCl are necessary to make 2.5 L of 1.25 M solution?

How many liters of 5.0 M saline solution would contain 6.2 moles of salt?

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