The reactivity of an atom arises from

a. The number of electrons in the nucleus.

b. The number of protons in the nucleus.

c. The number of electrons in the valence shell.

d. The atomic mass.

Which of the following is the most correct statement about a gas? options: A gas holds its shape. A gas takes the shape of its container. A gas has very little thermal energy. A gas is not affected by changes in pressure.

Why does increasing the pressure of a gas usually increase reaction rate? A. The increased pressure acts as a catalyst on the gas particles in the reaction. B. The gas particles are closer, which increases the number of collisions. C.

A chemical bond formed by the transfer of electrons is a

How do cm3 compare to mililiters

6 examples of mixtures and solutions

Equal masses (in grams) of hydrogen gas and oxygen gas are reacted to form water. Which substance is limiting? a. Oxygen gas is limiting b. Hydrogen gas is limiting. c. Water is limiting. d. Nothing is limiting. e.

Many things can cause an organism to become extinct. Here are some possible causes of extinction. Select the human causes of extinction.

Which word equation shows lithium oxide being formed from the reaction between oxygen and lithium? oxygen + lithium oxide Right arrow. Lithium lithium + oxygen Right arrow. Lithium oxide oxygen + lithium Right arrow.

What happens to the speed of light when waves travel through a denser medium

A 1.79-L flask is filled with propane gas (C3H8), at 1.00 atm and - 16.1°C. What is the mass of the propane in the flask?