Chose a biological Community in your region. Describe some of the populations that makes up that community

Consider the balanced equation. N2 + 3H2 - - > 2NH3 What is the percent yield of NH3 if the reaction of 26.3 g of H2 produces 79.0 g of NH3?

0.102 g of an unknown (non electrolyte) compound is dissolved in enough water to make 100. mL of a solution and has an osmotic pressure of 28.1 mmHg at 20 C. Calculate the molar mass of the compound.

Who was the first to state the concept of an atom?

Would an earthquake support the principle of uniformitarianism or the principle of catastrophism

Write the reaction responsible for the solution being basic. Do not include spectator ions. With NaF being the salt that produces a basic solution in water

Consider the reaction: 8H2S (g) + 4O2 (g) →8H2O (g) + S8 (g). Δ[H2S]/Δt = - 0.033M/s. Find Δ[O2]/Δt. Δ[H2O]/Δt. Δ[S8]/Δt. Find the rate of the reaction.

At room temperature and pressure what is the volume of one mole of oxygen?

Ibuprofen, a common pain remedy, has an empirical formula of C7H9O and a molar mass of approximately 218.078 grams per mole. What is the molecular formula of ibuprofen?

Copper (cu) is a transition element used in the making of coins. calculate the mass in grams of 0.0420

In 1864, the Solvay process was developed to make soda ash. One step in the process is represented by the balanced equation below.