Science

• "Fe" is the element symbol for iron
• An element cannot be broken down to any other substance
• The symbol for element can be found on the periodic table
• A compound is formed when one or more elements combine chemically
• A chemical formula represents a compound.
• NaCl is the formula for sodium chloride
• Pure substance has definite composition that will not vary
• Mixtures are a combination of many different substances or elements that are not chemically combined.
• Mixtures are not represented by a chemical formula
• Dimitri Mendeleev created a version of the periodic table and predicted the properties of yet to be discovered elements
• Matter is everything around us and takes up space and has mass
• The molocule is the smallest part in a chemical element or compound. It is made up of two or more atoms.
• Solid, liquid, gass, and plasma are the 4 states of matter.
• Chex mix is a mixture
• Chocolate milk is a mixture
• Water is a compound
• Iron(ll)Sulfide is a compound
• Au is an element
• O is an element
• Chlorine is an element
• H3PO4 is a compound
• CO2 is a compound
• NaCl is a compound
• CH3COOH is a compound
• Beer is a mixture
• Salad Vinaigrette is a mixture
• In Ca(OH)2 ~CaO+H2O there are 3 elements, the product has two compounds,there are 3 reactants, and there is one compound in the reactant