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What symbol represents the atom containing 40 protons and 51 neutrons?

Balance the following equation by selecting the correct coefficient in front of each formula. ___Ba(OH)2 + ___H3PO4

Write the complete electron configuration for the element carbon, C: Use the T2 function in the tool bar to show superscripts.

Which of the following illustrates the like dissolves like rule for two liquids?

Match the following descriptions to the appropriate atomic orbital:

Which hormone is secreted by the left atrial appendage?

Determine the heat energy released when a 4.30 gram piece of aluminum foil from the oven cools from 191oC) to 24oC.  The specific heat of Al is 0.897 J/goC. Please show your work with your answer.  You can use the equation editor   above if needed.

What is the correct formula for the ionic compound containing lithium ion and borate ion?   Show the individual ions first with their charges.  To show superscripts, use the T2 function in the tool bar. Then show the formula for the ionic compound.  To show subscripts, use the drop down next to T2 in order to get to T2 function on the tool bar. 2 Ion formulas = 2 pts Compound formula = 1 pt  

Match the letter in the left column with the correct description in the right column based on the image below.

Write the complete electron configuration for the element phosphorus, P: Use the T2 function in the tool bar to show superscripts.