The two columns on a data table represent the dependent variable and independent variable.
Answer:
Independent Variable and the Dependent Variable
Explanation:
To conduct an expierement, you need at least one of each to collect data
There are four. Fe, H, C, and O
P=nRT/V
P ≈ 1/V = decreasing volume
P ≈ T = increasing temperature
P ≈ n = adding one more mole of helium