1. You are given 500. g of potassium carbonate. You are then instructed to prepare an 8.0 M solution. How many liters of solution are required to dissolve all of the solute,
while providing the correct molar concentration?

The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.

This drawing shows a human body system. what is the primary function of this body system?

Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold