For the reaction, 2 A(g) + 2 B(g) => C(g) + 3 D(g), thefollowing data were obtained at constant temperature.
Experiment Initial [A], mol/L Initial [B], mol/L Initial Rate, M/min
1 0.11 0.15 2.0 x 10-5
2 0.11 0.30 2.0 x 10-5
3 0.22 0.45 4.0 x 10-5
4 0.22 0.60 4.0 x 10-5
Calculate the value of k to 3 significant figures.

Match the words in the left column to the appropriate blanks in the sentences on the right. (a) this is the law of definite proportions: all samples of a given compound, regardless of their source or how they were prepared, have proportions of their constituent elements. (b) this is the law of conservation of mass: in a reaction, matter is neither created nor destroyed. (c) this is the law of multiple (c) this is the law of multiple blank: when two elements form two different compounds, the masses of element b that combine with 1 g of element a can be expressed as a ratio of small whole-numbers. in this example, the ratio of \rm o from hydrogen peroxide to \rm o from water = 16: 8 \to 2: 1, a small whole-number ratio.: when two elements form two different compounds, the masses of element b that combine with 1 g of element a can be expressed as a ratio of small whole-numbers. in this example, the ratio of o from hydrogen peroxide to o from water = 16: 8 → 2: 1, a small whole-number ratio.