Chemistry, 30.06.2019 08:30 nevarezchiu7972
Astudent did an experiment on the cycling of environmental gases. she placed water and bromthymol blue in each of four test tubes. no other items were placed in tube 1. she placed a snail in tube 2, an aquatic(elodea) in tube 3 and both a snail and elodea in tube 4. then she stoppered the tubes and placed them in bright light for 24 hours. the function of tube 1 in this experiment is to 1. detect the presence of glucose 2. determine the amount of gases in the water 3. demonstrate the transparency of the solution 4. serve as a control
Answers: 1
Chemistry, 22.06.2019 00:00, dustinquiz255
1) this is the structure in the cell nucleus that houses a cell's genetic information
Answers: 3
Chemistry, 22.06.2019 16:00, hjgjlgkjg
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
Astudent did an experiment on the cycling of environmental gases. she placed water and bromthymol bl...
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