Calculate the energy required to heat [w] grams of water by 15°C.  Give your answer in Joules (units not required in the answer.)  The specific heat of water is 4.184 J / (g • °C).

Fill in the blanks of the following passage with the best answers.  Some answers may be used more than once, some may not be used. 1)______________________ is a type of experiment or study for measuring heat flow.  There are a number of kinds of instruments for such experiments.  Perhaps one of the simplest is the 2)_______________________, which uses a well-insulated styrofoam cup filled with a known quantity of water, covered with an insulated lid, and a thermometer to measure the temperature of the water.  A more complex (and expensive!) setup, known as a 3)______________________ uses a very strong steel chamber with a triggering device to initiate the process being studied, which is immersed in a water bath with a thermometer to measure temperature changes.  Both operate on essentially the same principle — the process heats (or cools) the water, causing a temperature change.  The measured temperature change, along with the known 4)____________________ of the instrument, allows for calculation of the energy absorbed (or released) by the water, which is equal to the energy released (or absorbed) by the system under study.

Match the following elements with the correct number of valence electrons for the neutral atom.

For each group of elements, give the preferred ionization (charge) state when ionized.  Some answers may be used more than once, some may not be used.

For the following reaction, calculate how many moles of FeCl3 are produced if [x] grams of Cl2 are reacted with sufficient Fe. 2 Fe(s) + 3 Cl2(g) –> 2 FeCl3(s)

Choose the best answers to fill in the blanks in the following passage.  Some answers may be used more than once, or not used at all. Chemical reactions may be classified into reaction ‘types.’  There are many such possible systems, but one way is to organize reactions according to whether materials are coming together, breaking down, or changing bonding partners.  In a 1)______________________ reaction, two or more materials combine to produce a single product.  In a 2)_____________________ reaction, one material is broken down into two or more products.  In a 3)___________________ reaction, one element is replaced for another in a compound.  Finally, in a 4)____________________reaction, two materials ‘swap’ bonding partners, to generate two new products.

Which of the following would be expected to dissolve into an aqueous solution to form an electrolyte?  (Note — the material must both 1) dissolve, and 2) produce an electrolyte once dissolved to be a valid answer.)  Choose all that may apply.

Which of the statements are true of the following reaction?  Choose all that apply. H2SO4(aq)  +  2 KOH(aq)  –>  K2SO4(aq)  +  2 H2O(aq)

Which of the following statements are true?  Choose all that may apply.

Match each reactant and product in the following reaction equation to the correct coefficient so that the equation balances.  Some coefficients may be used more than once, some not at all. ____ C4H10 + ____ O2 –> ____ CO2 + ____ H2O