Problems: Construct a table with a column for each of the six expressions: MgCl2, 7 H20,3
K2Cr2O7, 4 Ca(OH)2, Al2(SO4)3, 5 (NH4)2SO4
Answer the following questions in the rows.
31. What is the total number of molecules represented?
32. How many atoms are represented within one molecule?
33. Name each kinds of atom represented and indicate how many of each kind are
represented per molecule.
34. What is the total number of each kind of atom being represented?
35. What is the grand total number of atoms being represented?

a. a clone will be physically identical to the original, but won’t be genetically identical

have a good day!

tracks, burrows, eggshells, nests, tooth marks, or gastroliths

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.