Blog

Which of the following chemical bonds or interactions will form when atoms share electrons?

What phase of meiosis is shown in the image?   

What is the correct definition of Evolution?   

Like terms have the same coefficients.

@X@user.full_name@X@ @GMU: What is the standard cell voltage at 25.0oC for the reaction below?Sn4+(aq) + Cd(s) → Sn2+(aq) + Cd2+(aq) K = 4.01e18

@X@user.full_name@X@ @GMU: A flexible container was filled with O2 gas at a pressure of 1.704 atm and volume of 11.401 L. What volume would this same gas occupy if the pressure increased to 3.558 atm? Assume temperature is constant.

@X@user.full_name@X@ @GMU: Closed-tube manometers work exactly as barometers except by connecting them to a container its pressure can be measured. Assume you have a closed-ended manometer filled with an oil having a density of 0.8359 g/mL at 20°C rather than mercury (density = 13.546 g/mL at 20°C). What is the pressure if the height of the oil column is 1073.85 cm?

@X@user.full_name@X@ @GMU: What is the empirical formula of a compound if its percent composition is 60.96 % C and 15.35 % H? The compound contains only C, H and N.

@X@user.full_name@X@ @GMU: The density of a particular gas is 3.8579 g/L at 774.23 mm Hg and 22.93 °C. What is the molecular mass of the gas?

Which of the following conditions will cause equilibrium to shift to the left?2NH3(g) ⇋ N2(g) + 3H2(g)