Use the periodic table to complete these charts. Complete the following charts by counting the atoms in the compounds.



Sodium Oxide - Na2O

Type of atom:
# of atoms:

Total:


Calcium Chloride - CaCl2

Type of atom:
# of atoms:

Total:


Potassium Sulphate K2SO4

Type of atom:
# of atoms:

Total:


Aluminum Iodide - AlI3

Type of atom:
# of atoms:

Total:


NH 4C2 H3O2

Type of atom:
# of atoms:

Total:


2(NH4)2CO3

Type of atom:
# of atoms:

Total:



Pb(NO3)4

Type of atom:
# of atoms:

Total:


3(PO4)2

Type of atom:
# of atoms:

Total:


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Explanation:

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question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)