People use hot air balloons to rise high above the ground and be pushed by air currents from one place to another. The diagram shows a hot air balloon. A type of chemical reaction, called combustion, takes places between propane and oxygen in the burners.

a. describe a likely result of this chemical reaction that allows a hot air balloon to rise.

b. describe a design feature that limits the distance a hot air balloon can travel. explain your reasoning.

In pqr m< p=60 m< q= 30 and m

How can the periodic table be used to predict the behavior of elements?

Given the data below for the reaction, 2 a + 2 b + 4 c => d + e + 3 f, the reaction is fill in the [ ] order in a, fill in the [ ] order in b, fill in the [ ] order in c and fill in the [ ] order overall. (use the words "first, second, third, fourth" to fill each blank)experimentinitial conc of a, mol/l initial conc of b, mol/l initial conc of c, mol/l initial rate, mol/l.s1 0.1 0.1 0.2 2 x 10-32 0.2 0.3 0.2 6 x 10-33 0.3 0.1 0.2 2 x 10-34 0.4 0.3 0.4 1.2 x 10-2