Diamond is an allotrope of : a. carbon b. sillica
c. phosphorus c. Nitrogen​

Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o

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A50.0 ml sample of gas at 20.0 atm of pressure is compressed to 40.0 atm of pressure at constant temperature. what is the new volume? 0.0100 ml 0.325 ml 25.0 ml 100. ml