The mass of one Be atom is

The reaction N2 + 3 H2 → 2 NH3 is used to produce ammonia. When 450. g of hydrogen was reacted with nitrogen, 1575 g of ammonia were actually produced. What is the percent yield of this reaction? a. 20,7% b. 41,5% c. 62,1% d. 30,8% e.

In a molecule of chlorine (Cl2), the chlorine atoms are connected to each other by a single bond. Which statements correctly describe this bond? Select all the correct answers. It contains electrons from the first energy level. It is a sigma bond.

Sort in order the general steps of the scientific method. hypothesis interpret the findings publish the results experiment literature research

An 85g has a volume of 850cm3, what is the density of the rock show your answer

Examples of things we wish we could cure

2. How many grams of sucrose would be needed to prepare 100. mL of a solution of 0.10 M sucrose? Show your calculations.

You have two separate containers each filled with a gas. The containers have the same volume and are at the same temperature. The gases also exert the same pressure. Which of the following statements are true? a.

Here is an important message is chemistry code. scandium, iodine, europium, nitrogen, cerium, iodine, sulfur, gallium, ruthenium, oxygen, oxygen, vanadium, yttrium. What is the message

Which process are driven primarily by Earth's internal heat (thermal) energy

A radioisotope used for diagnosis must emit gamma rays of sufficient energy to escape from the body and it must have a half-life short enough for it to decay away soon after imaging is completed. TRUE FALSE