M--> m+ + e-
what reactions does this equation represents ?

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

Suppose that during that icy hot lab 65,000 j of energy were transferred to 450 g of water at 20°c what would have have been the final temperature of the water

Use the drop-down menus to label each of the following changes p for physical change and c for chemical change. the substance changes to a new substance. the original substance can be recovered. the color changes. gas is produced and given off. the substance changes size, shape, or volume.