Biology, 07.07.2019 22:00 robsantana11
Answer choices are : d two chemist are trying to determine if their water sample is a mixture or pure substance. in their investigation they first filter the sample of dirty water with gravel. the water is then clearer than before. see image. what does this change tell the chemist about the chemical make up of the sample? a. the water before filtration is a pure substance, because the particles did not maintain their chemical properties. b. the water before filtration is a mixture because the particles could be physically separated. c. more information is needed to answer the question. d. the water before filtration is a mixture because it cannot be physically separated and must be chemically separated.
Answers: 1
Biology, 22.06.2019 03:00
Which sentence best describes the relationship between chlorophyll and the chloroplast? a.)chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.
Answers: 1
Biology, 22.06.2019 04:30
What is the correct term for an area of rotating currents in an ocean? when ocean currents combine, they create an area of rotating currents called an
Answers: 2
Biology, 22.06.2019 06:00
Which example would the nurse consider to be a part of systems thinking theory?
Answers: 1
Answer choices are : d two chemist are trying to determine if their water sample is a mixture or pu...
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