PLEASE HELPP!! CALORIMETRY CHEMISTRY A 20.0 g lead ball is heated in a Bunsen burner to 705 degrees celsius. It is then dropped into a 500.0 g water bath. What is the initial temperature of the water if the final temperature is 35 degrees celsius? The C of lead is 0.13 J/g degrees C.

Which statement describes the appearance of a temperature-vs.-time graph? a horizontal line shows that the temperature increases at a constant rate over time. a vertical line shows that the temperature decreases at a constant rate over time. horizontal lines where the temperature is constant during phase changes connect upward-sloping lines where the temperature increases. horizontal lines where the temperature increases are connected by upward-sloping lines where the temperature is constant for each phase.

When curium-242 is bombarded with an alpha particle, two products are formed, one of which is a nudge on. what is the other product

Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?