What mass of oxygen is required to completely react with 2 moles of ch4

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

Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?

Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?