What is the symbol of the element that is in Period 4, and Group IIA(2) of the periodic table?

A blood gas specimen from a patient with congestive heart failure yields  the following results:pH: 7.56PCO2: 42 mmHgHCO3-: 37 mmol/LThis condition should be described as:

If elevated, which analyte would support a diagnosis of congestive heart failure?

On the chemical urinalysis strip, the leukocyte esterase and nitrite pads for this were positive and all other pads were negative.  What should be reported about this urine sediment (400X)?

An amniotic fluid tested positive for bilirubin at the hospital and was sent to a reference laboratory for confirmatory testing.  The reference laboratory report was negative.  The specimen was most likely:

How many mL of 6.00 M HCl are needed to prepare 1500 mL of 0.200 M HCl solution?

Equilibrium:The following question(s) refer to the equilibrium given below in which all reactants and products are gases. CH4 + H2O CH3OH + H2 + heat Indicate the effect of the changing condition on the position of equilibrium. Refer to Equilibrium. Add CH4 to the mixture.

Which of the following statements conforms to the trends within the Periodic Table of the Elements?

How many equivalents are contained in 0.25 moles of H2SO4?

What is the oxidation number of Br in ?