Describe the different abiotic and biotic parts of an ecosystem. Identify and explain what organisms lie on each of the trophic levels.

How is energy Associated with food stored

A total of 2.00 mol of a compound is allowed to react with water in a foam coffee cup and the reaction produces 146 g of solution. The reaction caused the temperature of the solution to rise from 21.00 to 24.70 ∘C.

What are chemical bonds

A student performed the Fractional Crystallization experiment described with the following results: Initial mass of sample mixture: 4.958 g, mass of salicylic acid recovered, 0.586 g; mass of CuSO4•5H2O recovered, 3.12 g.

How many grams are in CO2?

Why does the sky change colors at sunset? 1 because the sun changes colors 2 because the atmosphere reflects colors 3 because long wavelengths are scattered the least 4 because short wavelengths are scattered the least

Consider the reaction N2 (g) + 3 H2 (g) 2 NH3 (g), which is exothermic as written. What would be the effect on the equilibrium position of adding N2 (g) ?

According to Table I, which equation represents a change resulting in the greatest quantity of energy released? 1. 2C (s) + 2H2 (g) - > C2H4 (g) 2. 2C (s) + 3H2 (g) - > C2H6 (g) 3. N2 (g) + 3H2 (g) - >2NH3 (g) 4. N2 (g) + O2 (g) - > 2NO (g)

Calculate the number of liters in 3.25 g of ammonia

Adding drops of food coloring to a beaker of water more organized system?