Chemistry, 15.07.2019 21:30 unkownperson030
Jenny and mark complete a reactivity experiment by placing samples of metals into water. they initially place small shards of potassium into water and observe that hydrogen gas and potassium hydroxide solution are produced. to complete a second experiment, they place large cubes of potassium into water and observe the reaction again. assuming the same amounts of potassium and water were used in each experiment, do you expect their observations about the products formed and reaction rate to be the same? explain your answer.
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Chemistry, 22.06.2019 09:30
Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone,due to its high light availability and warm water temperature
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Chemistry, 22.06.2019 10:30
Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.
Answers: 1
Chemistry, 22.06.2019 19:00
What information does a complete ionic equation give that the balanced equation doesn’t show?
Answers: 1
Jenny and mark complete a reactivity experiment by placing samples of metals into water. they initia...
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