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Chemistry, 22.06.2019 06:40
Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine
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Chemistry, 22.06.2019 09:50
Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange
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Chemistry, 23.06.2019 17:30
Insoluble substances can dissolve in all solvents. true or false
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Chemistry, 23.06.2019 20:00
When nitrogen taken into the body exceeds nitrogen losses, we say the person is in a. positive nitrogen balance b. nitrogen homeostasis c. nitrogen equilibrium d. a healthy state e. negative nitrogen balance?
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Mathematics, 03.06.2020 19:01
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