<span>What caused the bubbles to form when you added the catalyses to the hydrogen peroxide and water mixture at 40 °C? A. Catalyses activity heated the solution to its boiling point. B. Hydrogen gas formed during the formation of hydrogen peroxide. C. Oxygen gas formed during the decomposition of hydrogen peroxide.
This would be the water, mixture.</span>
Density = mass divided by volume. 15/30 is 1/2 so the density is 1/2 or 0.5 g/cm
The answer is 3) no change
Hope this helps
This is a guess, but I think it could be the lack of limiting factors.
Answer:
The iron is in the +3 oxidation state, which is what the III means.
