Which of the following represents a stable octet? A 1s2 2s2 2p6 3s2 3p6 4s2

B [He] 2s2 2p3

C 1s2 2s2 2p1

D [Ne] 3s2 3p6

Which element on the periodic table has chemical properties that are most similar to carbon?

A 11.7-g sample of methane (CH4) reacts with 46.7 g of oxygen gas in a container fitted with a piston (at 1.00 atm and 436 K). Methane can react with oxygen to form carbon dioxide and water vapor or carbon monoxide and water vapor.

Equation for ammonium iodide + aluminum sulfide

What is the major product of the calvin-benson cycle that can then be used to form glucose?

Give two reasons to explain why a proline residue in the middle of an α-helix is predicted to be destabilizing to the helical structure. Check all tha apply. A.

Which of the following is NOT a chemical reaction? a. ice melts from water b. ammonia breaks up into nitrogen and hydrogen c. hydrogen and oxygen combine to make water

Which type of atom is expected in the products of this chemical reaction? C6H12O6 + 6O2? A. boron (B) B. lithium (Li) C. oxygen (O) D. helium (He)

How many moles of caco3 are there in an antacid tablet containing 0.515 g caco3?

Consider a sample of helium and a sample of neon, both at 30.0°C and 1.5 atm. Both samples have a volume of 5.0 liters. Which statement concerning these samples is not true? Consider a sample of helium and a sample of neon, both at 30.0°C and 1.

Select all the statements that are true about electron configurations: A) The electron configuration of an atom describes the energy of electrons in the atom.