Chemistry

Chemistry, 16.07.2019 10:50, leo4687

Why is water unable to dissolve the oil in the beaker?

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Chemistry, 12.07.2019 18:40, larry2929

During an investigation, similar effervescent tablets were dropped into a beaker containing cold water and a beaker containing tap water. the table below shows an incomplete record of the investigation. investigation results beaker time taken for the tablet to dissolve (seconds) cold water (50 ml) 68 tap water (50 ml) ?

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Chemistry, 14.07.2019 13:00, amandaparrish2323

Alka-seltzer is an antacid that is dissolved in water before use. for an experiment, three tablets of alka-seltzer are dissolved in three beakers, each containing 50 ml of water: beaker a's water is 10° c; beaker b's water is 50° c; and beaker c's water is 80° c. which answer correctly orders the reaction rates of the three beakers from fastest to slowest reaction? beaker a > beaker b > beaker c beaker c > beaker b > beaker a beaker b > beaker a > beaker c beaker a = beaker b = beaker c

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Chemistry, 29.08.2019 00:30, molly7654

Astudent takes three beakers and places 250 ml of water in each. the student then adds a cube of sugar to all three beakers. the first beaker is stirred, the second beaker is heated, and the third is left alone. which of the following statements is true? the first beaker dissolves faster than the other two. the second beaker dissolves faster than the other two. the third beaker does not dissolve as fast as one and two. there is not enough information to determine the answer.

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Mathematics, 18.10.2019 05:30, haileestulley

Eduardo dissolved as much salt as he could into a beaker of water. he did not measure the salt as he put it in, but he wanted to know how much salt had dissolved into the water. he weighed the saltwater and the beaker. the total mass of both was 156 g. eduardo gently heated the beaker of saltwater until all the water evaporated, then weighed it again. the salt and beaker together massed 56 g. when he removed all the salt from the beaker, the beaker weighed 20 g. how much salt did eduardo dissolve into the water? 136 g 36 g 76 g 100 g

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