The pH range for a base.
what is 7-14?
A material made up of only one type of particle, having consistent properties throughout.
What is a pure substance?
A state of matter with a definite shape and volume.
What is a solid?
A well-substantiated explanation of an aspect of the natural world based on a body of evidence and repeated testing.
What is a scientific theory?
The pH of a neutral solution.
What is 7?
A substance that consists of two or more elements chemically combined.
What is a compound?
The state of matter in which particles are closely packed together and vibrate in place.
What is a solid?
The definition of a scientific law.
What is a statement that describes a consistent and universal relationship observed in nature, often expressed mathematically?
A compound formed from the reaction of an acid and a base.
What is a salt?
A substance that can be separated physically.
What is a mixture?
A description of the movement of particles in a gas.
What is particles are far apart and move freely at high speeds?
True/False: Theories can change over time.
What is true?
What is an acid?
A pure substance that cannot be broken down into simpler substances by chemical means.
What is an element?
The change in energy (increase/decrease) that occurs when a solid melts into a liquid.
What is increase?
True/False: Theories can become laws with enough evidence.
What is false?