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Chemistry
Reactions
Atoms
Periodic Table
Other
100
properties
What are characteristics of something?
100
Reactants
What are the substances that you start with in a chemical reaction? (What reacts)
100
atom
What is an element with a specific number of protons and electrons?
100
Periods
What are the rows on the periodic table?
100
Compounds
What is one or more elements chemically combined
200
Matter
What is anything that has mass and takes up space? (everything but energy.)
200
Products
What are the substances that you end with during a chemical reaction? (What is produced)
200
Electron
What are the negative particles that are found in an atom?
200
Groups
What are the columns on the periodic table?
200
Metal
What is something that is solid at room temperature, a good conductor, metallic, and malleable.
300
Chemistry
What is the study of matter and how it can change?
300
Exothermic
What is a reaction in which energy is lost?
300
Proton
What are the positive particles in the atom?
300
Atomic number
What is the top number on an element box? It stands for the number of protons and electrons in an atom.
300
Conductor
What is something that easily transfers heat or energy?
400
Physical Change
What is a change that affects one or more physical properties of a substance? (Nothing new is created)
400
Precipitate
What is a solid that is formed from a chemical reaction?
400
Elements
What is a pure substance that can not be broken down into any other substances by physical or chemical means.
400
Mass Number
What is the bottom number on an element box? It stands for the number of protons + neutrons in that atom.
400
Non-metal
What can be solid, liquid or gas at room temperature, a poor conductor, dull and brittle?
500
Chemical change
What occurs when one or more substances are changed into entirely new substances with different properties?
500
Endothermic
What is a reaction in which heat and energy are absorbed?
500
Neutrons
What are the neutral particles in an atom?
500
Element
What is an atom with a specific number of protons and electrons
500
Law of Conservation of Matter
What states that matter is not created or destroyed? In a chemical reaction the mass of the reactants will equal the mass of the products.