A bus travels 100 km in 2 hours, 50 km in .25 hours, 250 km in 3 hours and 75 km in .5 hours. What was the average speed of the bus?

9. write the chemical equation for the following word equations. include symbols for physical states in the equation. a. solid zinc sulfide + oxygen gas -> solid zinc oxide + sulfur dioxide gas b. aqueous hydrochloric acid + aqueous barium hydroxide -> aqueous barium chloride + water

What is the number of atoms in 3.54 mol s

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