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In the passage Shame by Dick Gregory. Locate one (1) supporting paragraph in the essay, and identify its topic sentence. Describe the method you used to identify the topic sentence. Support your explanation with a specific example. discuss the effectiveness of the supporting sentences in the previously selected paragraph. Provide two (2) examples to support your opinion. From the p paragraph, identify the technique the author used to close the paragraph. Support your rationale with at least one (1) example.
Explain why the Rf values changed when the eluant was changed from 100% petroleum ether to a 95:5 mixture of petroleum ether-ethyl acetate. Why UV light is not a useful visualization technique in every circumstances?
What is the frequency of ultraviolet light with wavelength 2.51 × 10-8 m? (c = 3.00 × 108 m/s)
A 3.00g lead weight, initially at 10.8°C, is submerged in 7.77g of water at 52.9°C in an insulated container. What is the final temperature of both substances at thermal equilibrium
Which one of this substance that is fully hydrolyzed in the water? a. barium chloride b. Ammonium carbonate
Based upon what you know about acids and bases, and given that manganese will be reduced by sodium bisulfite, make a prediction about how the oxidation-reduction reaction will be affected by acidic
The combustion of one mole of ethanol (C2H5OH(l)) to produce carbon dioxide and gaseous water has ?Hr = -1235 kJ · mol-1 at 298 K. What is the change in internal energy for this reaction?
the rate law for the reactionnh4 aq no2- aq------gt n2 g 2 h20 lis given by the ratek nh4 no2-at 25 c the rate
How many moles of methane are produced when 71.1 moles of carbon dioxide gas react with excess hydrogen gas
If 200ml of 2.00M HCL solution is added to 400ml of 1.00M NaOH solution What molarity will the resulting solution NaCl have?
Balance the following equation in acidic solution using the lowest possible integers and give the coefficient of water.
Calculate the rate constant at 100 °C. Suggest a reason for the low activation energy for this reaction.
A procedure called coulogravimetric analysis combines a weight determination with a measurement of the quantity of electricity in a controlled-potential electrolysis to analyze bromide-chloride mixtures
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