Topsoil is considered to be most fertile when it has a

A. low pH level

B. low sand content

C. high organic matter level

D. high parent rock material

Which half reaction equation correctly represents a reduction reaction?

The equilibrium constant for the reaction H2 (g) + I2 (g) 2 HI (g) Kp is 54.4. What percent of I2 (g) will be converted to HI (g) is 0.200 moled each of H2 (g) and I2 (g) are mixed and allowed to come to equlibrium in a 1.00 liter container?

What is now true about the sugar? A. The sugar is no longer made up of particles because all of the particles dissolved in the water. B. The sugar is still made up of particles, but they got smaller when they dissolved. C.

What is the molar mass of 56.75 g of gas exerting a pressure of 2.87 atm on the walls of a 5.29 l container at 230 k?

Which of the following would be an example of a trophic relationship? Select all that apply. photosynthetic plankton respiring oxygen into the ocean small marine life feeding on the algae and plankton that have descended to the ocean floor a

One isotope has 6 protons and 8 neutrons which reference names this isotope

When an atom that has no charge loses two electrons, it becomes a: A: positive ion. B: negative ion. C: positive isotope. D: negative isotope.

A 155.0 9 piece of copper at 182 °C Is dropped into 2500 g of water at 23.9 °C. (The specific heat of copper is 0.385 1/9°C.) Calculate the final temperature of the mixture. (Assume no heat loss to the surroundings.)

Which state of matter is characterized by having an indefinite shape, but a definite volume? Gas Liquid Solid None of the above

What metric unit is used to measure distance?