Chemistry, 24.05.2021 15:50, joeljuarez128oyusun
Observe the statements. I. Phenolphthalein is a colourless solution II. Phenolphthalein turns pink in basic solution III. Phenolphthalein turns red in acidic solution IV. Phenolphthalein remains colourless in acidic solution Choose the correct option a. I &II are correct b. I & III are correct c. I ,II & IV are correct d. All the statements are correct
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Which common material is an example of a polymer? (25 pts) a. steel b. plastic c. petroleum d. rubbing alcohol
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Word equation for k(s) +h2o(l) yield koh (aq) + h2
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What will most likely happen in the absence of a cell membrane? a) photosynthesis will not take place. b) the cell will not store food, water, nutrients, and waste. c) energy will not be released during cellular respiration. d) substances will pass in and out of the cell in an uncontrolled manner.
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Observe the statements. I. Phenolphthalein is a colourless solution II. Phenolphthalein turns pink i...
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