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Unit 12
balancing equations Vocab
| Term | Definition |
|---|---|
| reactants | in a chemical equation the compounds that are going into a reaction are called the? AB --> A + B (AB side) |
| products | in a chemical equation the compounds being made, and are coming out after it has fully reacted, is called? AB --> A + B (A + B side) |
| coefficients | the numbers in a chemical formula that are large and are in front of a compound is called? Example in 2NaBr the large 2 |
| subscripts | the numbers written below the line next to an atom in a chemical formula is called? Example in H2O the 2 is below the line |
| single replacement reaction | a reaction where one atom or compound is exchanged is called? Example A + BC --> AC + B |
| double replacement reaction | a reaction where two compounds are exchanged in the product is called? AB + CD --> AD + BC |
| decomposition reaction | a reaction where compounds are breaking down into atoms it is called ABC --> A + B +C |
| synthesis reaction | a reaction where atoms are coming together into compounds is called? Example A + B +C --> ABC |
| endothermic reaction | when a reaction absorbs energy but the temperature does not increase, the reaction is called? |
| exothermic reaction | a reaction that has a release of energy creating heat, what type of a reaction is it? |
| Acid (?) | When the Potential Hydrogen in a substance is high and there are many H+ ions, that substance is said to be? |
| Base (?) | when a substance is high in OH- ions, the substance is said to be? |
| oxidation | when a chemical reaction loses electrons it is called_____? |
| reduction | when a chemical reaction gains electrons it is called ____? |
| (teacher will write on the board, study using class handouts) | Balance a chemical equation...List, count, find the small one, find the small one.... |
| (teacher will write on the board) | Use oxidation numbers to determine a compounds formula |
| (teacher will write on the board, study using class handouts) | Balance a chemical equation...List, count, find the small one, find the small one.... |
| (teacher will write on the board) | Balance a chemical equation...List, count, find the small one, find the small one.... |
| (teacher will write on the board, study using class handouts) | Use oxidation numbers to determine a compounds formula |
| (teacher will write on the board) | Use oxidation numbers to determine a compounds formula |
| Base | Mostly, a formula that purposefully ends in OH would be considered a ... |
| Acid | Mostly, a formula that purposefully starts with H would be considered to be ..... |
| Base | From above a 7pH to 14 pH is considered to be .... |
| Acid | From below a 7 pH the pH is considered to be .... |
| Neutral | Technically a perfect 7ph would be considered to be... |
| Combustion | CH + Oxygen --> CO2 + H2O |
| Law of Conservation of Energy | matter can be neither created nor destroyed. |
| catalyst | Something that speeds a chemical reaction up. (An example is stomach acid speeding up the digestion process) |
| inhibitor | something that slows a chemical reaction down |
| activation energy | the initial energy required to start a reaction (Like in our labs where we had to add heat to make a reaction occur.) |
| surface area exposure. heat, concentration, mixing, adding a catalyst | 5 things that can change the rate of a reaction. |
| Salt & Water | Acid plus a Base creates __________ & ___________ |
| Neutralization Reaction | A reaction where you add enough acid to a base to get the pH to be neutral is called what type of a reaction? |
Created by:
NJHS Physical Science
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