Chemistry

At STP, fluorine is a gas and bromine is a liquid because bromine has ________ _______ _________.

What law states that energy can be absorbed or released in a change, but never destroyed or created?

The periodic chart organizes _______ into a grid.

The mass of an element that is located at the bottom of the element box on a periodic table is called the __________ __________.

Energy is ____________involved when a physical or chemical change occurs.

What is it called when a solid goes directly to a gas?

True or False: according to the KMT, only particles of matter in the gaseous state are in constant motion.

How many electrons does helium have?

Forces of attraction are different for different ________.

An Explanation supported by many experiments, but cannot be fully proven

Compared with gases, liquids have stronger ________ ________.

What is a testable statement or prediction about what has been observed?

This describes a relationship in nature that is supported by many experiments

Liquids that do not evaporate easily because of strong forces of attraction are called________ ___________.

Liquids that evaporate easily due to very weak forces of attraction are called _______ _______

In an elastic collision, kinetic energy is transferred from one particle to another, and the total kinetic energy _______ ______.

Boiling and evaporation are both _________ physical change processes.

Energy can be in various forms such as: _______ and _______.