A 25.0 g sample of zinc is heated, then placed in a calorimeter containing 65.0 g of water at 20.00°C. The temperature of the zinc and water stabilizes to 22.50°C. What was the initial temperature of the zinc metal sample? C of zinc = 0.387 J/(g:°C).

2points why do scientists need governmental funding? o a. government politicians ask all the important scientific questions. o b. scientists have to pay taxes to the government on the money they make. o c. the cost of doing scientific research can be very high. o d. the government is controlled by scientists. submit

Scientific evidence tells us that the cause of earths four season is the tilt of earth as it revolves around the sun. the student is instructed to illustrate this information in a science notebook. how will the student illiterate winter in the northern hemisphere?

Avariable that is not being directly tested during an experiment should be