Chemistry, 25.10.2020 05:00 hemriccaleb1213
Pre-Lab Information Purpose Explore the rate of a chemical reaction at different temperatures and with different reactant particle sizes. Time Approximately 45 minutes Question What are the effects of temperature and a reactant’s particle size on reaction rate? Hypothesis 1 If you increase the temperature of a reaction, then the reaction rate will increase because particles experience more collisions at higher temperatures. Hypothesis 2 If you decrease the particle size of a reactant, then the reaction rate will increase because more of the reactants’ surface area is exposed allowing more particles to make contact with each other. Variables Independent variables: particle size, temperature Dependent variable: reaction rate Summary The reaction between effervescent tablets and water will produces CO2 gas, which you can observe in the form of bubbles; when the bubbling stops, the reaction is complete. You will measure the reaction times and rates for tablets dissolved at four temperatures and broken into three different particle sizes
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Chemistry, 22.06.2019 00:30
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Chemistry, 22.06.2019 08:40
For each of the following compounds, write the formula then predict whether it would be a strong, weak, or non-electrolyte when placed in di water. for the ionic compounds only, put (s) or (aq) after the forrmula formula strong, weak or non electrolyte? a calcium hydroxide b. silver carbonate c. lead(ii) sulfate d. phosphorus trifluoride e. sodium phosphide f barium sulfate g. strontium acetate h. zinc nitrate
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Chemistry, 22.06.2019 11:40
Effect of rotenone and antimycin a on electron transfer rotenone, a toxic natural product from plants, strongly inhibits nadh dehydrogenase of insect and fish mitochondria. antimycin a, a toxic antibiotic, strongly inhibits the oxidation of ubiquinol. (a) explain why rotenone ingestion is lethal to some insect and fish species. (b) explain why antimycin a is a poison. (c) given that rotenone and antimycin a are equally effective in blocking their respective sites in the electron-transfer chain, which would be a more potent poison? explain.
Answers: 3
Pre-Lab Information Purpose Explore the rate of a chemical reaction at different temperatures and wi...
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