What is the mole ratio of aluminum to aluminum chloride?

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)

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