An ore of barium contains baco3. a 1.620 g sample of the ore was treated with hcl to dissolve the baco3. the resulting solution was filtered to remove insoluble material and then treated with h2so4 to precipitate baso4. the precipitate was filtered, dried, and found to weigh 0.7766 g. what is the mass of barium in the sample?

Your roll: experienced electron speech is adressed to: a new "freshman class" of electrons job: write a speech task: you are to pretend that you are giving a speech to a new group of electrons. be sure to mention their placement in an atom, their charge, and their role in chemical bonding (ionic and covalent) be specific!

Consider the equilibrium system: 2icl(s) ⇄ i2(s) + cl2(g) which of the following changes will increase the total amount of of cl2 that can be produced? all of the listed answers are correct decreasing the volume of the container removing the cl2 as it is formed adding more icl(s) removing some of the i2(s)

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2