Bob Jones Science 9th Chapter 9
Terms
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- Proof of a chemical reaction
- 1 or more of these: a solid seperates from a liquid, a gas is produced, a permanant color change, temperature change, light or sound is produced.
- This represents the chemical composition of a substance...
- Chemical Formula
- This represents the changes that take place in substances as they react...
- Chemical Equation
- These numbers below the line tell how many of each kind of atom is present...
- subscripts
- This number tells how many electrons an element is likely to gain, lose, or share...
- Oxidation
- Alkali metal atoms (Group 1A) have an oxidation number of...
- +1
- Alkaline-earth metals (Group IIA) have an oxidation number of...
- +2
- Halogens (Group 17) have an oxidation number of...
- -1
- Oxygen family elements (group 16) have an oxidation number of...
- -2
- Transition metals usually have an oxidation number of...
- +1 or +2
- The sum of the oxidation number in any formula must be...
- zero
- When writing a formula, which element goes first?
- The less electronegative one-the one farther to the left or farther down on the periodic chart
- In a correctly written formula, the subscript times the ___________ of each element added together will equal zero.
- oxidation number
- Ions composed of two or more atoms that are covalently bonded and act as a single particle...
- Polyatomic Ions
- A polyatomic ion must always be in _____________ when it has a subscript.
- Parentheses
- A compound with only two elements...
- Binary compound
- In a binary compound, the first name of the compound is the name of the...
- element with the positive oxidation number.
- In a binary compound, the last name is the name of the...
- element with the negative oxidation number with an -ide ending.
- To name a binary compound made of two nonmetals, use...
- prefixes.
- The prefixes for 1 through 6 are...
- mono (don't use with first element),di, tri, tetra, penta,hexa
- To name a compound with a polyatomic ion in it...
- write the name of the cation (positive ion) with no prefixes and the name of the anion with, if it is a single element, and ide ending, or, if it is a polyatomic ion, with the ions name with no ending.
- Nitrogen has two oxidation numbers that are...
- -3 and +5
- What is the common name for Iron Oxide?
- Rust
- Noble gases have oxidation numbers of...
- Zero