Two alternative procedures may be used to compare the effect of concentration on reaction rate. The first was demonstrated in the Introductory Activity. The second procedure involves the change in mass of the reaction mixture versus time. How would you expect the mass of the system to change as the reaction proceeds

If 200.0g of copper(ll) sulfate react with an excess of zinc metal, what is the theoretical yield of copper

What must happen before a body cell can begin mitotic cell division

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.