Based on its Lewis symbol, how many covalent bonds is sulfur (S) likely to form?

Which of the following compounds would you predict to have the lowest melting point?

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″} _______

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

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