Acetylene gas C2H2 burns in the oxyacetylene torch for welding. How many grams of C2H2 are burned if
the reaction produces 75.0 g CO2?
2 C2H2(g) + 5 O2(g)
4 CO2(g) + 2 H2O(g)

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.

the dependant variable is spilled water

the independent is the heat

what is the question here. i think you messed up.

they are all solids.