Answer:
It is one single unit which is repeated in a polymer
U need to do it in cronological order
Answer: 20 + 1 + 3.8 + 2.4 +27 = 54.2
Explanation: 20 gallons plus 1 gallon plus 3.8 plus 2.4 plus 27 equals to a total number of 54.2 gallons for the propane.
The fact that they lay like 300 eggs. And maybe that they are fast.
Correct answer is C
Na2O + H2O ----> 2 NaOH
:-) ;-)