Charlie hears an advertisement for Cremefresh lotion. The advertisement says that Cremefresh lotion heals dry skin 75% faster than other leading lotion brands. How can Charlie use scientific thinking to find out if the lotion company's claims are true?

A248-g piece of copper is dropped into 390 ml of water at 22.6 °c. the final temperature of the water was measured as 39.9 °c. calculate the initial temperature of the piece of copper. assume that all heat transfer occurs between the copper and the water. remember, the density of water is 1.0 g/m

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air

2. circled insects have mutations, or changes to their dna. how many of the offspring insects in this generation have mutations?