Chemistry, 01.12.2019 09:31 kathleenirwin
Sunita carries out an experiment to investigate diffusion. she uses water and a food dye to find out how the volume of water used affects the time the dye takes to spread evenly through the water. her prediction is that the more water she uses, the longer the time needed for the dye to spread through it. which variable will she change?
Answers: 1
Chemistry, 22.06.2019 04:00
Which of the following ocean acidification? are the most likely side effects of a ph less than 7.0 in the ocean b. more metal salts altering the ocean chemistry c. dissolution of the shells of marine organisms d. both a & b e. all of the above.
Answers: 3
Chemistry, 22.06.2019 08:00
An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.
Answers: 1
Chemistry, 22.06.2019 16:00
Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy
Answers: 1
Chemistry, 22.06.2019 22:00
In order to complete this lab. you will need to be familiar with some common chemistry terms. complete the chemical change puzzle and list the relevant terms and their meaning below a.rectant b.product c.supernate
Answers: 3
Sunita carries out an experiment to investigate diffusion. she uses water and a food dye to find out...
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