4) Which of the following represent a valid hypothesis ? A) Sodium metal reacts violently with water.
B) Oxygen is a gas at room temperature.
C) Lead is soft and malleable.
D) Neon does not react with oxygen.
E) Metals tend to lose electrons.

What are the major products produced in the combustion of c10h22 under the following conditions? write balanced chemical equations for each. a. an excess of oxygen b. a slightly limited oxygen supply c. a very limited supply of oxygen d. the compound is burned in air

Which best describes why nh4+ can form an ionic bond with cl-?

Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?