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How many molecules are present in 3 mols of silicon dioxide (sio2)?

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f

Which of the following statements are evidence that gases do not always behave ideally? check all that apply.? a. co2 gas becomes dry ice (solid co2) at 1 atm and –78.5 °c. b. when two gases are mixed, they follow dalton\'s law of partial pressures. c. at 4 k and 1 atm, helium is a liquid. d. it is impossible to compress a gas enough so that it takes up no volume.