Type the correct answer in the box. Express the answer to three significant figures. Given: CH4 + 2O2 → CO2 + 2H2O, ΔH = -890 kJ/mol How much energy is released when 59.7 grams of methane (CH4) reacts with oxygen? The combustion of 59.7 grams of methane releases kilojoules of energy.

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.

How do you convert 4 mmol of bromobenzene to ml?

How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process