Thallium consists of 29.5%Th-203 and 70.5%Th-205. What is the relative atomic mass of thallium?

A student hypothesizes that water from infrequently used school faucets contains more chemical impurities than the water from frequently used faucets.

Compared with acids that have suffix - ic, acids that have the suffix - ous contain A. more hydrogen. B. more oxygen. C. less oxygen. D. The same amount of oxygen

Boron has an average mass of 10.81. One isotope of boron has a mass of 10.012938 and a relative abundance of 19.80 percent. The other isotope has a relative abundance of 80.20 percent. What is the mass of the two isotopes?

Calculate the number of grams in 8.75 moles of NaC1

Which of the following is not the same as 0.953 kilograms? 953 g 953,000 mg 9530 cg

Reactions cannot occur without a certain minimum amount of energy. what is this minimum amount of energy called?

What are the products of the alpha decay of Iodine-131?

Which lewis electron-dot diagram represents a nitrogen atom in the ground state

What would a 1:1 liquid binary mixture of Cyclohexane and Toluene look like? How would the molecules associate with one another?

A sample of argon gas is at a pressure of 1.725x10^4 kPa and a temperature of 24°C in a rigid 20 L tank. How many moles of argon does this tank contain? (show your work)