In chemistry, we had a lab. in this lab, we took rusted copper cents and we put it in heated zinc chloride solution. i am just wondering what the name of this alloy is.

Consider the reaction: n2(g) + o2(g) ⇄ 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?

Calculate the mass of carbon in 97.0 g of sucrose c12h22o11

Light waves travel than sound waves.