Why do gases exert pressure on the container? *

The gas particles hit each other.

The gas particles move quickly in all directions.

The gas particles hit the container wall.

What does the rate of a chemical reaction describe?

Which of the following is always true when a substance undergoes a physical change? a. the composition changes. b. a change in color occurs. c. no new substance is formed. d. its specific gravity remains the same.

A prehistoric pharmacist might have been called a a. shaman. b. pharmakon. c. golem. d. tourista.

If the coefficient 2 is placed in front of the product tetraiodine nonaoxide (I4O9), then, how many atoms of each element must be accounted for on the other side of the equation?

How many Fe atoms are within a single FeCl2 molecule

Balance the following chemical equation: / text{CH}_ 4 + CH 4 + start text, C, H, end text, start subscript, 4, end subscript, plus / text{O}_ 2 / rightarrow 2 →start text, O, end text, start subscript, 2, end subscript, right arrow / text{CO}_2 +

How did the invention of the spectroscope in 1859 change the science of chemistry

Will zinc and sodium carbonate react?

What fraction of carbon 14 remains in an animal frozen in a glacier 18000 years ago?

How do you convert the number of molecules of a substance to the number of moles? a. add Avogardo's number b. subtract Avogardo's number c. multiply Avogardo's number d. devide Avogardo's number