Review+1+for+chemistry+test

Name: Date: Block: Review 1 for Chemistry Test
 * 1) Complete the table below.

|| ** Element Name **
 * ** Symbol ** || ** # of protons ** || ** # of electrons ** || ** Average # of neutrons ** ||
 * **Hydrogen** || || || || ||
 * **Helium** || || || || ||
 * **Carbon** || || || || ||
 * **Nitrogen** || || || || ||
 * **Oxygen** || || || || ||
 * **Sodium** || || || || ||
 * **Iron** || || || || ||
 * **Krypton** || || || || ||
 * **Iridium** || || || || ||
 * **Californium** || || || || ||


 * 1) Fill in the blanks to balance the chemical equations:
 * 2) Identify the following elements
 * 3) H is the symbol for what element?
 * 4) What is the name of the element with 21 protons in its nucleus?
 * 5) Sn is the symbol for what element?
 * 6) What is the name of the element with 16 protons in its nucleus?
 * 7) Tc is the symbol for what element?
 * 8) What is the name of the element with 74 protons in its nucleus?
 * 9) Cd is the symbol for what element?
 * 10) What is the name of the element with 45 protons in its nucleus?
 * 11) Calculate the Molecular weight of the following chemical compounds (SHOW YOUR WORK)

c. ______H2 + O __ > ______ H2O

 * 1) CO2 c. CaF2


 * 1) Nb2O3 d. NiBr2

a. Copper - Cu c. Platinum - Pt
 * 1) Diagram the nucleus of the following elements:

b.. Magnesium - Mg d. Tin - Sn


 * 1) Match the element to the group it belongs to: (some groups may be used twice)

Lithium Noble Gases Iron Alkali Earth Metals Strontium Non Metals Copper Alkali Metals Sulfur Transition Metals Boron Halogens


 * 1) A student measures the pH of two compounds during an experiment. Compound A has a pH of 12 while compound B has a pH of 8. Compare and contrast these two compounds.