1.) How many periods are on the periodic table? Are periods the columns or the rows on the periodic table?

Which test is used to detect nitrogen, sulfur, and halogens?

The real purpose of the Milgram study was to investigate 1. the effects of punishment. 2. memory and learning. 3. the effect of electric shock. 4. all of the above

The largest tsunami in recent years occurred in which state

The bond energy for the van der waals bond between two helium atoms is 7.9*10-4ev. assuming that the average kinetic energy of a helium atom is (3/2) kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium

What sex is the person who has the karyotype described in Steps 3-4? How do you know?

Which of the following planetary objects have the most affect on Earth's tides? sun Mars moon Venus

Ionic compounds are formed by the ... of electrons? by the what?

What is it called when energy is created without oxygen?

If 21.3 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 297 Kelvin and 1.40 atmospheres? Show all of the work used to solve this problem. 2Li (s) + 2H2O (l) - > 2LiOH (aq) + H2 (g)

How did coroners handle their responsibilities in the early 1900s? Why was there a need for significant change in the job?