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(5 points) For full credit solve show your work for this question in a clean piece of paper, include question #, full set up, units and significant figures. The correct answer alone (no work shown) is worth up to 1 point.    What mass of oxygen (in grams) is consumed by the complete combustion of 25.0 grams of acetylene, C2H2?                                                                                                                                        2 C2H2(g)  +  5 O2(g)  → 4 CO2(g)  +  2 H2O(g) Compound Molar mass, g/mol C2H2 26.04 CO2 44.01 H2O 18.02 O2 32.00    Enter your final answer in the box below:

Identify the atomic element.

(5 points) For full credit solve show your work for this question in a clean piece of paper, include question #, full set up, units and significant figures. The correct answer alone (no work shown) is worth up to 1 point.    In the reaction below how many moles of carbon are needed to produce 66.0 g of carbon monoxide?                        2 C + O2 → 2 CO   Enter your final answer in the box below:

Identify a true statement about cultural differences in friendships.  

What initially motivated the exportation of U.S. popular culture?

Which statement is FALSE about how people think about or use popular culture (and information about cultures)?

When the lung collapses without injury or any other obvious cause, it is called which of the following?

You are treating a patient with a possible fractured ankle. The patient appears to be in a lot of pain and is uneasy. As you are getting ready to splint the patient’s leg, he asks you if it is going to hurt. Which of the following is the best response?

Many stroke patients are candidates for thrombolytic drugs. One of the most important things that an EMT can do to optimize the care of a stroke patient who is a candidate for the drugs is:

Which of the following best describes the position you should take when dealing with a cooperative patient who is sitting in a chair?