Consider the reaction below. c2h4(g) + h2(g) --> c2h6(g) which change would likely cause the greatest increase in the rate of the reaction? a) decrease temperature and decrease pressureb) increase temperature and decrease pressurec) decrease temperature and increase pressured) increase temperature and increase pressure

Amass of 100.0 g of solute is dissolved in water so that 850. ml of a 0.7500 m solution has been prepared. what is the molar mass of the solute?

Will give brainliest it is a lab from k12 here is the linkfor each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. type your answer here. (score for question 3: of 5 points) were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. type your answer here. (score for question 4: of 5 points) make a general statement about the reactivity of the metals in this experiment. type your answer here.

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?