click below
click below
Normal Size Small Size show me how
sections 6-1 6-4 6-2
physical science honors chapters 6 sections 1,2,4
Question | Answer |
---|---|
What is a compound? | Two elements that are chemically combined in a fixed ratio |
what are chemical bonds? | the attractive forces that hold different atoms or ions together |
Ammonia,vinegar,sand,sugar,rubbing,alcohol, water(H2O) | examples of compounds |
chemical formula | short hand way of writing a chemical name |
subscripts | tells the # of atoms |
superscripts | tells the charger or oxidation |
ionic bonds | network structure(strong bond), high melting point, dissociate in water, gain and lose e- |
covalent bonds | molecule structure(weak bond), share electrons,low melting do not dissociate in water |
what is common between covalent and ionic bonds? | both try to make elements happy(stable) |
what is a ion? | an atom that is either a positively(cation) or negatively(anion) charged |
what is a ionic bond? | the force of the attraction between the opposite charges of ions(metal/nonmetal) |
what is a molecules? | neutral particles formed as a result of electrons sharing |
what is a covalent bond? | the bond between atoms when they share electrons(happens between two nonmetals) |
Non-polar | in a molecule when the atoms share evenly Ex:H2,N2,O2,F2,Cl2,Br2,I2 |
polar | when one atom is has a stronger attraction for the electrons than the other Ex:CO2,H2O |
what is a polyatomic ion? | a group of covalently bonded atoms that have either lost or gained electrons. |
a metallic bond | a bond formed by the attraction between positively charged metal ions and the electrons around them Ex:Cu,Au,Ag,Zn |
organic | most any covalently bonded atom that contains carbon in it(anything that is alive) |
inorganic | most compounds that do not contain the element carbon Ex:CO,CO2 |