Chemistry

Chemistry, 18.07.2019 16:00, felipa11

Harry put 20 ml of water in a beaker and wanted to track how the water evaporated each day. what would be the best estimate as to the amount of water left in the beaker at the start of day 5?

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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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Mathematics, 28.09.2019 12:30, destineedeal1

Two identical metal spheres at 8 °c are put in equal amount of water in two beakers, as shown below. two beakers are side by side; one is labeled beaker a and the other is labeled beaker b. both beakers are the same shape, size, and are about two-thirds full with water. both beakers have a metal sphere with a temperature of eight degrees celsius submerged in the water. heat flows from the metal sphere to the water in beaker a and from the water to the metal sphere in beaker b. which statement is correct? the temperature of the water is greater than 8 °c in beaker a. the temperature of the water is lower than 8 °c in beaker b. the temperature of the water in beaker a will increase. the temperature of the water in beaker b will increase.

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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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Biology, 24.10.2019 20:43, ununoctrium5401

What does relative humidity measure? the amount of water in cirrus clouds the amount of water that has evaporated into the air the amount of frozen water that has condensed from the air the amount of water vapor in the air compared to the amount the air can hold

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