In the dominant Lewis structure for ozone, O3, how many nonbonding electron pair(s) is/are on the central atom?

For ClF3, the formal charge on the central atom is _____. Hint: Draw the dominant Lewis structure before determining formal charge.

For the carbonate ion (CO32-), which of the following statements is true?

Match each prefix with the correct definition or description.

Solve the following equations. Show your work on your worksheet to receive full credit. 9(3t-4)+63=0{“version”:”1.1″,”math”:”9(3t-4)+63=0″} _______

Solve the following equations. Show your work on your worksheet to receive full credit. -8r-10=4r+26{“version”:”1.1″,”math”:”-8r-10=4r+26″} _______

Solve the following equations. Show your work on your worksheet to receive full credit. -6z=48{“version”:”1.1″,”math”:”-6z=48″} _______

Compute the standard deviation of X. Provide 3 digits after the decimal point.

3-point Bonus Question: Florida has 26 fewer electoral votes for president than California. If the total number of electoral votes for these two states is 84, find the number for each state. What is the correct equation to solve this problem? _______ California has _____ electoral votes. _______ Florida has ____ votes. _______

If a randomly selected person tests positive, what is the probability that they actually have the disease? Provide four digits after the decimal point.