How many moles of boron make up 1.20 * 1024 atoms of boron?

Xenon tetrafluoride gas is placed in a 3 liter container at 80°c. the pressure of the gas is found to be 0.117 atm. how many moles of the gas are in the container

A covalent compound is composed of a nitrogen atom, a hydrogen atom, and a carbon atom. How many electrons should the Lewis structure of the covalent compound contain?

5. Explain which heated up faster water (specific heat 4.18 J/gK) or oil (specific heat 1.67 J/gK) :

For the reaction: 3F2 (g) + Cl2 (g) ⇌2ClF3 (g) . When 2.60atm of F2 and 1.25atm of Cl2 are initially placed into an empty 5.00L rigid flask at 325K, the system eventually reaches equilibrium with a total pressure inside the flask of 3.00atm.

When 4 moles of aluminum are allowed to react with an excess of chlorine gas, Cl2, how many moles of aluminum chloride are produced?

Which statement best describes a bacterial cell? A It contains more than one cell. B It is a complete organism. C It is part of a larger organism. D It contains different kinds of cells

Lithium (Li) and oxygen (O) are both in period 2. They both have? a. similar properties b. the same number of protons c. two electron shells d. the same number of electrons

What compares a law and a theory?

Explain what domain would best be represented by the "?" in the diagram. A) Eukarya because the organisms are all eukaryotic. B) Eukarya because the organisms are all prokaryotic. C) Bacteria because some of the organisms are autotrophs.

If you are eating a hamburger, it is an example of a consumer eating another consumer. a) true b) false