Calculate the number of moles of potassium, K, in 1.21 x 1024 atoms of potassium

Which bond or interaction would be most difficult to disrupt when compounds are placed into water?

What is the pH of pure water? 2.0 5.0 7.0 12.0

The nuclear reaction that occurs by combining two or more lighter atoms into a larger one is called what? a. nuclear fusion b. nuclear fission c. beta emission d. alpha emission

What is the mass of 1.56 x 1021 atoms of magnesium in grams?

A jar is tightly sealed at 22°C and 772 torr what is the pressure inside a jar after its been heated to 178°C

Radioactive elements decay at a know rate known as half-life. Choose all of the correct statements concerning half-life. Carbon-14 has a half-life of 5,730 years. A 30 gram sample will be 10 grams after 5,730 years.

I am the most reactive metal in Period 4.

Titanium is a transition metal used in many alloys because it is extremely strong and lightweight. titanium tetrachloride (ticl4) is extracted from titanium oxide using chlorine and coke (carbon). if you begin with 1.

Complete the following statements about the functions of the digestive system. The starts an involuntary swallowing action when it senses food. The squeezes food down the digestive tract by an involuntary synchronized muscle movement called.

How do you preform water displacement