which is a correctly balanced equation for reaction between hydrogen gas and oxygen gas

Which two notation represent atoms that are isotopes of the same element

What is the maximum number of electrons that occupy the second principal energy level

A child complains that his soup is too hot. His mother places an ice cube in the soup to cool it. How will the soup's thermal energy behave? It will absorb thermal energy from the ice cube. It will flow from the soup to the ice cube.

How many atoms are in 0.625 moles of ge (atomic mass = 72.59 amu) ?

The volume of a fixed mass of a liquid sample increases as the temperature rises from 20 to 40˚c. does the density increase, decrease, or stay the same? explain your answer.

How would non secretion of of saliva effect digestion of food in the mouth.

Which of the following is insoluble in water? a." (NH) SO b. Na so c. Maso d. ZnSO e Baso

What is the difference between a root word and a combining form? List 2 examples of combining form

What is the octet rule and how does it explain the formation of ionic compounds?

Can somebody explain step by step how to solve decomposition reactions?