Intro to Matter
Has mass and takes up space.
What is Matter?
Something we can observe and measure.
What is a physical property?
What is a Reactant?
Includes the chemical symbol, atomic number, and the atomic mass.
The scale that measures the concentration of hydronium ions.
The amount of matter in an object.
What is mass?
Chemical formulas located on the right side on the yield sign (arrow).
What is a product?
Represents the number of protons.
What is the atomic number?
The most reactive group of metals.
What are Alkali Metals?
Two classifications of matter.
What is substances and mixtures?
The ability of a substance to dissolve into another one.
What is solubility?
Chemical reactions occur because....
What is atoms are constantly moving?
The columns in the periodic table.
What is a group?
From right to left and from top to bottom the ___________ increases.
What is reactivity?
Two or more different atoms bonded together chemically.
What is a compound?
The formation of a new precipitate or substance.
What is a chemical change?
What is balancing the equation?
Takes up majority of the periodic table, very shiny, and have high conductivity.
What is a metal?
The ability to pull into wires and the ability to be hammered into thin sheets.
What is ductility and malleability?
Two or more substances that are not uniform.
What is a heterogeneous mixture?
The particles are the same before and after a phyiscal change, so that means the mass is also the same.
What is the Law of Conservation of Mass?
The number located at the bottom corner of an atom (O2)
What is a subscript?
What is a metalloid?
The group that reacts with metals and forms salts.
What is Group 17?