How many moles of carbon dioxide are produced when 19.3 mol of propane gas is burned in excess oxygen?

a. 57.9 mol

b. 6.43 mol

c. 32.2 mol

d. 6.84 mol?

Metallic properties tend to increase in which direction on the periodic table

If an element in a chemical reaction loses electrons, which of the following describes what happens to that element? A. It is combusted B. It is reduced C. It is rusted D. It is oxidized

Which is the best example of how electromagnetic energy is used in everyday life?

Which process is an example of a chemical change? a metal railing rusting in damp weather a piece of wood shrinking as it dries out alcohol evaporating from a cotton swab steam rising from a boiling pot of soup

How many types of atoms can you expect to find in a sample of any element?

Definition of a delocalised electron

How are the components of the electromagnetic spectrum, from radio waves to gamma rays, grouped? Group of answer choices according to their wavelength according to their speed according to their visibility according to their velocity

Which two of the following elements would you expect to be most similar: nitrogen, chlorine, barium, fluorine, and sulfur?

Which statement best describes control rods? They are unmovable pieces. They are inert. They supply neutrons to start the nuclear chain reaction. They drive the generator

A large rift valley can be found along the east coast of Africa. It has been slowly widening over time, and it is now wide enough to contain many large lakes. Which of these best explains the slow widening of this rift valley over time? A.