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An element is discovered that is solid at room temperature, has one valence electron, and readily forms a 1+ ion. This element is a….

What part of the brain contains the pneumotaxic center and apneustic centers?

Which of the following is considered a part of your “second line” of defense, as in your internal defenses. 

As defined in the lecture, identify the “gas evolution” reactions among the following: 2 HCl (aq)  +  K2CO3 (aq)  →  H2O (l)  +  CO2 (g)  +  2 KCl (aq) CH4 (g)  +  2 O2 (g)  →  CO2 (g)  +  2 H2O (l) 2 HCl (aq)  +  K2S (aq)  →  H2S (g)  +  2 KCl (aq)

  Did this experiment demonstrate active or passive transport?  (one word answer) [35] if the temperature were to be raised by 10 degrees, what would happen to the rate of transport? [36]

Solve the following problem, and select the correctly rounded answer choice:  9.3 x 203.9 = (Select the BEST answer choice)

What metric unit of measure might you use to evaluate the following items?  Which unit would most likely be used.   length of a flag pole? [45] Weight of a boat [46] Volume of a small beaker [47] Length of a pencil [48] weight of a large animal [49] volume of a large Dr. Pepper bottle [50]

Which of these test tubes shows a positive reaction in a Biuret’s test? (write the letter of your answer) [33] The Biuret’s test is an experiment used to determine the presence of which major organic molecule type? (which macromolecule, one word answer) [34]

Write out the balanced molecular and net ionic equations for this problem on your scratch paper, then select the net ionic equation from the choices below:  When a solution of MgCl2 and one of AgNO3 are mixed, the net ionic equation is:

Which of the following is NOT typically a sign of a chemical reaction?