Use the Gizmo to mix 200 g of copper at 100 °C with 1,000 g of water at 20 °C. A. What is the final temperature? B. Calculate the temperature change of each substance by subtracting the initial temperature from the final temperature. ∆T water: ∆T copper: C. How much heat energy (q) did the water gain? D. Now solve for the specific heat (c) of copper:

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

Complete the following statements to describe solids, liquids, and gases. select the correct answer from each drop-down menu. a solid a definite volume and a definite shape. a liquid a definite volume and a definite shape. a gas a definite volume and a definite shape

As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit