Calculate the number of moles of methane (CH4) needed to produce 7.84 g of water (H2O).

Explain that newton first law,second law and third law of motion?

What is the correct equation for cellular respiration?

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