In order to charge a lead storage battery 410.0 g of PbSO4(s) must be converted into PbO2(s) and Pb(s). If a current of 530 A is used, how long will it take

What is conserved in the reaction shown below? h2(g) + cl2 (g) --> 2hcl(g)a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume

Sum of brother and sisters age is 26. four times the brothers age is subtracted from three times the sisters age, the difference is 8. what are the ages of the brother and sister?

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume