An unknown gas at 18.00°C and 1.15 atm has a density of 1.4445 g/L.  Identify the gas.

Give three examples of stresses that tardigrades are able to survive.

Calcium hydroxide reacts with hydrochloric acid according to the equation shown below. If 35.36 mL of calcium hydroxide reacts with 44.13 mL of 0.413M HCl, what is the concentration of the calciumhydroxide? Ca(OH)2 (aq) + 2 HCl (aq) ––> CaCl2 (aq) + 2 H2O (l)

Calculate heat gained or lost for the reaction of 42.8 g of carbon with excess SO2(g) according to the reaction shown below. Is the reaction endothermic or exothermic?           5C (s) + 2 SO2(g) –> CS2 (l) + 4CO (g)      ΔH°= 239.9 kJ

You have responded for an injured person at an address you know to be a motorcycle clubhouse. Your patient was attacked by another party with a broken beer bottle. Your patient has a large laceration on her neck with moderate bleeding. Which   dressing material is most important in caring for this patient? _______

Let u=3,2,2 and v =1,-2,1{“version”:”1.1″,”math”:”u=3,2,2 and v =1,-2,1″}.   Find the angle between u and v.

Evaluate limx→0126xsin-13x{“version”:”1.1″,”math”:”limx→0126xsin-13x”}

The blood flowing to the heart best describes: _______

Describe the domain of the function f(x,y,z)=y+xz+2{“version”:”1.1″,”math”:”f(x,y,z)=y+xz+2″}.

Which of the following is an equation of the plane tangent to the surface z=x2+3y2{“version”:”1.1″,”math”:”z=x2+3y2″} at the point (3,1,12)?