Chemistry In Focus
6th Edition
ISBN: 9781305084476
Author: Tro, Nivaldo J., Neu, Don.
Publisher: Cengage Learning
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NO2 is present throughout the day, but its concentration is highest in the midmorning. Explain this. Your answer should cite at least two
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- Complete the following equation. Using Table 15.2, predict whether you would expect the reaction to occur to any significant extent or whether the reaction is more likely to occur in the opposite direction. HSO4(aq)+ClO(aq)arrow_forwardDescribe what happened to the overall level of carbon dioxide over this period of time.arrow_forwardPart 1 A student carried out an investigation to observe the effect of changing concentration of sulfuric acid on the breakdown of calcium carbonate (marble) chips. They changed the concentration of the acid between each test but kept the size of the marble chips constant. The full equation for the reaction and a graph of the overall results can be seen below. CaCO3(s) + H₂SO4(aq) → CaSO4(aq) + CO2(g) + H₂O (1) a) b) Rate of Reaction * Concentration of Acid (mol dm³) Explain, using collision theory, why the student obtained these results, and state what they could conclude about the effect of changing concentration of acid on the rate of reaction between calcium carbonate and sulfuric acid. If the student had ground up the calcium carbonate chips into a powder and run the tests again, what would you expect to happen to the rate of reaction? Briefly explain why by applying collision theory. Part 2 The student ran the same experiment, but this time changed the temperature, increasing it…arrow_forward
- NEED HELP! When potassium metal is placed in water, a large amount of energy is released as potassium hydroxide and hydrogen gas are produced in the reaction 2K(s) + 2H2O(l) → 2KOH(aq) + H2(g). Your lab partner says this is a redox reaction and a combustion reaction. Do you agree? Defend your answer by explaining whether or not it meets the requirements of each type of reaction.arrow_forwardAddition of which of the following reactants would lead to the formation of more hydrogen gas? magnesium water hydrochloric acid magnesium chloride.arrow_forwardForm a hypothesis that might explain which season is CO2 concentration the highest and which season the lowest and write a brief description explaining why it is the way it is. Hint: Plant photosynthesis reduces the CO2 concentration and decay processes increasearrow_forward
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