Moving up trophic levels there is an increase in energy, entropy, and biomass.

a. True

b. False

How many representative particles are in 1.45 g of a molecular compound with a molar mass of 237 g?

What is stearic acid?

A sample of nitrogen gas has a volume of 450 cm3 and a pressure of 125 kPa. What volume would the gas occupy at 90 kPa if the temperature were to remain constant?

What coefficient of O2 is needed to balance the equation C3H8 + O2 - > 3CO2 + 4H20? a. 2 b. 3 c. 5 d. 6

For water droplets to form what must be present

What is true about empathy? Most anyone can learn this skill. Not everyone can learn this skill. It is a desirable attribute. choices A and C

What effect can new observations have on a scientific theory

The total number of valence electrons in the phosphate ion is

The reaction below has an equilibrium constant kp=2.2*106 at 298 k. 2cof2 (g) ⇌co2 (g) + cf4 (g) calculate kp for the reaction below. cof2 (g) ⇌12co2 (g) + 12cf4 (g)

The electrical conductivities of the following 0.100 M solutions were measured in an apparatus that contained a light bulb as the indicator of conductivity. Rank the solutions in order of decreasing intensity (brightest to dimmest) of the light bulb.