Measurement
a unit that comes before a base unit of measure to show a multiple or subdivision of the base unit; ex: kilo-, centi-, milli-
What is a prefix?
The study of the properties of matter and how matter changes
What is chemistry?
a subatomic particle with a positive charge that is located in the nucleus of an atom
What is a proton?
the forces that hold atoms together, these may be ionic, covalent or metallic
What is a chemical bond?
the ability to do work or cause change
What is energy?
standard units of measurement from which all other measurements can be determined; include meter, liter, gram, etc.
What is the base unit?
a pure substance that cannot be broken down into simpler substances by chemical reactions
What is an element?
a subatomic particle with no electric charge, located within the nucleus of the atom
What is a neutron?
the substances present before a chemical reaction occurs; the arrow points away from this group in a chemical equation
What are the reactants?
movement of energy from one place or object to another
What is an energy transfer?
a system of measurement based on multiples of 10
What is the metric system?
material that has mass and takes up some amount of space
What is matter?
a subatomic particle with a negative charge
What is an electron?
the substances that are formed during a chemical reaction; in a chemical reaction the arrows point toward this group
What are the products?
the process of energy changing or converting from one form to another
What is energy transformation?
the amount of matter in an object; measured in grams (g)
What is mass?
the physical forms in which matter exists, as determined by the average kinetic energy of the atoms involved; solid, liquid, gas and plasma
the number of protons in the nucleus of an atom; determines the chemical properties of the atom
What is the atomic number?
a fundamental principle of science stating that mass cannot be created or destroyed in a closed system through ordinary chemical or physical means
What is the Law of Conservation of Mass?
the law that states that energy cannot be created or destroyed but can be changed from one form to another
What is the Law of Conservation of Energy?
the amount of space that an object occupies, measured in liters (L) or centimeters cubed (cm^3)
What is volume?
a pure substance that is formed when two or more different elements combine; can usually be separated into component elements by chemical reaction
What is a compound?
a chart that scientists use to organize and classify all the different elements
What is the periodic table?
the number placed in front of a chemical formula to indicates the number of molecules present
What is the coefficient?
the transfer of thermal energy
What is heat?