What is the balanced chemical equation for the reaction of sodium and oxygen

Which structure corresponds to the predominant form of this molecule near ph 7?

Which statement describes the appearance of a temperature-vs.-time graph? A horizontal line shows that the temperature increases at a constant rate over time. A vertical line shows that the temperature decreases at a constant rate over time.

What is the function of an Alcohol Lamp?

What are protons and nuetrons

Which of the following statements is true? a. Ag (s) reacts spontaneously with 1 M H + (aq). b. Ag (s) reacts spontaneously with Ni2+. c. Ag (s) reacts spontaneously with 1 M NO3 - in 1 M H + (aq). d.

What mass of naturally occurring uranium is closer to 238 u, 235 u or 234 u?

A flask with a volume of 12.0 l contains 4.25 mol of oxygen gas at 15ºc. how many moles of nitrogen gas must be added to give a total pressure of 10.0

Which of the following states of matter has a definite shape? A. solids and liquids only B. liquids and gases only C. liquids only D. solids only

What rock is formed under the greatest conditions of heat and pressure?

Which of the following is a possible Noble gas notation? [Ar] 4s^24p^2 [Ar] 3s^23p^6 [Ar] 4s^23d^104p^2 [Ar] 3s^23d^10