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Immediately following intubation of a patient, you note that the tube is located at the 23cm mark at the patient’s teeth. One hour later, the tube is now located at the 20cm marking at the patient’s teeth. This would most likely indicate:

Which one of the following is a metallic crystalline solid?

Which one of the following will have only dispersion forces?

What is the electron pair geometry and molecular geometry, in that order, for the molecule C2H2?  

Write the name for CuO in the blank.

Write the name for HBr(aq) in the blank.

Classify each of the following elements as metal, nonmetal or metalloid AND then classify each as solid, liquid, or gas at room conditions. a) Lithium is a [answer1] and a [answer2]. b) Chlorine is a [answer3] and a [answer4]. c) Neon is a [answer5] and a [answer6]. d) Cobalt is a [answer7] and a [answer8]. e) Bromine is a [answer9] and a [answer10]. f) Aluminum is a [answer11] and a [answer12]. g) Tellurium is a [answer13] and a [answer14]. h) Mercury is a [answer15] and a [answer16]. i) Nitrogen is a [answer17] and a [answer18].  

Which of the following is TRUE concerning the like dissolves like rule for two liquids?

Which one of the following lists contains a rare earth, a Group 4A element, and a halogen, in that order?

What is the mass of lead (SH = 0.308 cal/g oC ) that releases 56.9 calories of heat energy as the metal cools from 45.5oC to 14.0oC?   Show your math setup with answer.  An answer only will NOT receive full credit. You may choose to use the equation editor (  ).  Click on the three vertical dots to find it in the tool bar. Express answer using significant figure rules.