In an experiment to determine the enthrall change for the reaction between zinc and copper sulfate, a cooling curve was used to estimate the temperature change. The zinc was added to the copper sulfate solution at 3.5 minutes and the results were plotted on a graph. What is the temperature change

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.

There is a single path for electrons. the current decreases when additional resistors are added. the current will be the same in each resistor. these statements best describe a(n) circuit.

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?