Chemistry, 18.07.2019 13:00 bryanawesome23
Science nutrient pollution causes algal blooms and fish kills. question 2 options: true false save question 3 (1 point) question 3 unsaved in normal ecosystem low nutrient levels keep algae in check. question 3 options: true false save question 4 (2 points) question 4 unsaved which of the following contributes to excess nutrients entering the bay? question 4 options: sewage run-off not recycling agricultural run-off air pollution save question 5 (2 points) question 5 unsaved in order to get phase 2 to turn blue (like we saw in phase 1), did we need more or less drops of reagent d than what we used in phase 1? question 5 options: more less save question 6 (2 points) question 6 unsaved which stage of of the experiment had the most dissolved oxygen in the water? question 6 options: phase 1 phase 2 phase 3
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Chemistry, 22.06.2019 18:00
How many moles of oxygen gas are produced from the decomposition of six moles of potassium chlorate
Answers: 3
Chemistry, 22.06.2019 21:00
Rays from the sun are not considered matter true or false
Answers: 2
Chemistry, 22.06.2019 22:30
Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.
Answers: 1
Chemistry, 23.06.2019 08:00
Why is it important for scientists to review and repeat the work of other scientists? 1.a scientific theory must be tested three times before it is proven. 2.the scientific method only applies to repeated experiments. 3.an experiment may have had errors that the scientists didn't recognize. 4.the results of individual scientists may be influenced by bias. 5.an experiment must be performed twice before the data can be analyzed.
Answers: 3
Science nutrient pollution causes algal blooms and fish kills. question 2 options: true false sav...
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