Chemistry, 25.04.2021 20:40 rosebelll4555
Objects that blow into a swimming pool or that are dropped into the pool by swimmers need to be removed. these objects include form cups, keys, and coins. which of the following explains useful method for removing some of these objects?
A. the keys and coins are less dense than water, so they can be easily picked up off the bottom of the pool divers
B. the foam cups are less dense than water, so they can be crumbled up for removal by the pool filter
C. The foam cups are less dense than water, so they can be removed from the surface with a pool cleaning met
D. the keys are coins have the same density as water ,sothey can be washed away when the pool is drained
Answers: 1
Chemistry, 21.06.2019 15:40
What is the total reduction potential of a cell in which potassium (k) is reduced and copper (cu) is oxidized? a. 2.59 v b. 3.27 v c. -3.27 v d.-2.59 v
Answers: 1
Chemistry, 22.06.2019 06:30
The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. sulfuric acid aluminum hydroxide initial amount of reactant 40 g 15 g theoretical yield of water from reactant 14.69 g 10.38 g what is the approximate amount of the leftover reactant? 11.73 g of sulfuric acid 10.33 g of sulfuric acid 11.12 g of aluminum hydroxide 13.67 g of aluminum hydroxide
Answers: 3
Objects that blow into a swimming pool or that are dropped into the pool by swimmers need to be remo...
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