many portable gas heaters and grills use propane, c3h8(g). using enthalpies of formation, calculate the quantity of heat produced when 11.0 g of propane is completely combusted in air under standard conditions. assume that liquid water is forming.

We the people of the united states, in order to form a more perfect union, establish justice, insure domestic tranquility, provide for the common defence, promote the general welfare, and secure the blessings of liberty to ourselves and our posterity, do ordain and establish this constitution for the united states of america. according to the preamble which action represents an appropriate role for government

Factor out the greatest common factor. minus − 14 14p3 plus + 10 10p2 plus + 4 4p

In this food web, which group would increase in number if snakes were eliminated? a. producers b. decomposers c. primary consumers d. secondary consumers e. tertiary consumers