According to the chemical naming system, which name is incorrect? Formula:                 Name: SnCl4              tin (IV) chloride S2Cl2                    disulfur dichloride Mg(CO3)         magnesium carbonate Na2(SO4)        sodium sulfate FeBr2              iron bromide  

Experiments by Gay-Lussac showed that the pressure of a gas at a constant volume:

When sulfur (S, #16) forms an ion in an ionic compound, it would be represented by  a. S+2     b. S-2     c. S+6     d. S-6

Refer to the structural formula given below:  What type of intermolecular forces (dipolar, dispersion, or hydrogen bonding) would exist between molecules of PCl3?   

The direct change from the solid state to the vapor state is called

Use the equations below to solve the following gas law problem.  P1V1T2 = P2V2T1                          1 atm = 760 mm Hg = 760 torr A 0.823 L sample of carbon dioxide, initially at 0.25 atm of pressure is compressed until it occupies only 93.2 ml.  If temperature remains constant, what is the final pressure, in mm Hg, of the gas? To receive full credit:  You must use the math equation editor in the tool bar to insert the final gas law equation (with numbers and units) that you used to solve the problem.  Be sure to include the answer. Or, show your work on a separate sheet of paper and submit in the Unit 2 Exam pictures dropbox after completing the Exam. 

If two atoms have the same electronegativity values, what type of bond will exist between the two atoms? 

Which of the following choices best classifies the following reaction:  2 NaCl   +   F2   2 NaF  +  Cl2 a. combination b. single replacement c. decomposition d. double replacement  e. redox f.  nonredox

Which of the following is an exothermic process?

Which element is reduced in the following reaction? 2 NaBr  +   Cl2   →  2 NaCl   +  Br2