Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Mixtures, Bonding, e
Review for Mixtures, Bonding, Formulas, and Equations
| Question | Answer |
|---|---|
| the combining of atoms to form molecules or compounds | chemical bonding |
| a substance containing 2 or more elements held together by chemical bonds | compound |
| an atom with 1, 2, or 3 electrons in its outer shell | lender |
| an atom with 5, 6, or 7 electrons in its outer shell | borrower |
| a charged atom | ion |
| a bond that forms when electrons are shared between 2 or more atoms | covalent bond |
| a bond that forms when electrons are transferred from one atom to another | ionic bond |
| geometric structures with regular shapes which contain ions | crystal |
| a group of atoms held together by covalent bonds | molecule |
| a group of symbols & numbers showing the number and kinds of atoms in a molecule or compound | chemical formula |
| a number written below and behind a symbol showing the number of atoms | subscript |
| the number of electrons in the outer shell | valence electrons |
| the number of electrons that an atom lends, borrows, or shares | oxidation (or valence) number |
| a pure substance composed of only one kind of atom | element |
| a number placed in front of an symbol or formula to balance an equation | coefficient |
| the shorthand way of writing a chemical reaction | chemical equation |
| the ingredients in the beginning of a chemical reaction | reactants |
| Atoms are neither created nor destroyed. | Law of Conservation of Mass |
| substance(s) formed by a chemical reaction | product |
| What does the arrow in a chemical equation mean? | yield |
| A capital letter or a capital and small case letters that represent the name of an element | symbol |
| process used to separate salt and water - a solution | evaporation |
| a mixture that is unevenly distributed | heterogeneous |
| the substance being dissolved in a solution | solute |
| the substance doing the dissolving in a solution | solvent |
| a mixture that is evenly distributed | homogeneous |
| What is a physical combination or "junking" of two or more substances called? | mixture |
| a homogeneous mixture | solution |
| the "universal" solvent | water |
| How would you separate iron and salt? | Use a magnet |
| How would you separate sand and water? | filtration |
| How would you separate saltwater? | evaporation |
| What device do you need to separate particles of different sizes - like soil? | sieve |
| What process is used to separate particles of different sizes? | sifting |
| A chemical reaction where matter is allowed to enter or escape so that the mass changes | open system |
| a chemical reaction where matter cannot enter or escape so that the mass remains the same | closed system |
| If the mass of the reactants is 24 grams, what will the mass of the products be? | 24 grams |
Created by:
anita.parker
Popular Physical Science sets