A sample of nitrogen gas reacts with an excess of hydrogen gas to give an actual yield of 22.1 g NH3. The theoretical yield is 26.9 g. What is the percent yield for this reaction? Reaction: N2(g) + 3 H2 (g) → 2 NH3 (g)

Select all that apply. a beta particle: is electromagnetic energy is an electron has zero charge is emitted from the nucleus has a +2 charge has a -1 charge

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

After watching the video "zinc strip in copper nitrate solution", and reading the instructions, click on the link labeled "start" just below the drawing of the pencil tip. follow the direction to complete the 3x3 grid. answer the below questions for the portion of the activity in which sn(s) is placed in agno3(aq)