1. A 454.8g sample of a mixture containing 70.00% CH4 and 30.00% C2H6 was combusted with oxygen. What is the theoretical yield of carbon dioxide (in grams) for this reaction?

CH4 + 2 O2 > CO2 + 2 H2O

2 C2H6 + 7 02

--> 4CO2 + 6H2O

Explain why scientists use shared characteristics to make cladograms.

What are the similarities of physical and chemical change ?

For each of the following compounds, write the formula then predict whether it would be a strong, weak, or non-electrolyte when placed in di water. for the ionic compounds only, put (s) or (aq) after the forrmula formula strong, weak or non electrolyte? a calcium hydroxide b. silver carbonate c. lead(ii) sulfate d. phosphorus trifluoride e. sodium phosphide f barium sulfate g. strontium acetate h. zinc nitrate