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Update Unit 1: Chemistry Part 2.md

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## Acids
### Naming Binary Acids
- $`HCL_{(g)} \rightarrow`$ hydrogen chloride
- $`HCL_{(aq)} \rightarrow`$ **hydro**fluoric **acid**
- $`HCl_{(g)} \rightarrow`$ hydrogen chloride
- $`HCl_{(aq)} \rightarrow`$ **hydro**fluoric **acid**
- Need to put the **hydro** prefix as it tells us its disolved in water and is an acid
## Oxyacids
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- We use an arrow instead of an equal sign to show `beomces`, `reacts to form`, `produces`
- On the **left** side, we always have the **`REACTANTS`**, (INPUT), these get used up in the chemical reaction
- There can be plus signs to show multiple `reactants`. (Recipes, we are adding them together)
- On the **right** side, we have the **`PRODUCTS**` (OUTPUT).
- On the **right** side, we have the **`PRODUCTS`** (OUTPUT).
- Newly produced/made from `reactants`
- Plus signs show multple products, more like an **AND** more than anything else
- In a chemical reaction, reactant, molecules/atoms/formula units/ions reaarange to produce products moleccules/atoms/ions/formula units
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- neutralization
## Sythensis
- When 2 or more substances combines into one substance
- When 2 or more substances combine into one substance
- $`A + B \rightarrow AB`$
## Decomposition
- With a substance breaks down into 2 or more substances
- When a substance breaks down into 2 or more simpler substances
- $`AB \rightarrow A + B`$
## Single Diplacement
- When
- When an element displaces another of the same group in a substance
- $`A + BC \rightarrow B + AC`$
## Double Displacement
- When two cations switch places in two substances
- $`AB + CD \rightarrow CB + AD`$
- Note: If both products would be aqueous, there is no reaction
## Combustion
- Two types: Combustion with metals and combustion with hydrocarbons
- Combustion requires and releases heat but for the purposes of grade 10 chemistry this is ignored
- Combustion with metals
- When a pure metal and oxygen gas react to produce the most common oxide
- e.g., $`2Mg + O_{2(g)} \rightarrow 2MgO_{2(s)}`$
- Combustion with hydrocarbons
- Two types: Complete and incomplete combustion
- Complete combustion
- When a hydrocarbon reacts with oxygen gas to produce water and carbon dioxide
- Only works when enough oxygen is provided
- Flame is blue
- e.g., $`CH_{4} + 2O_{2} \rightarrow 2H_{2}O + CO_{2}`$
- Incomplete combustion
- When a hydrocarbon reacts with oxygen gas to produce water, carbon dioxide, carbon, and/or carbon monoxide
- Lack of oxygen prevents complete combustion
- No hydrogen can be left over
- Flame is orange/yellow
- e.g., $`2CH_{4} + 3O_{2} \rightarrow 4H_{2}O + 2CO`$
## Neutralization
- When an acid and base react with each other
- Changes properties of both the acid and base so that they are no longer acidic nor basic
- Acids give their hydrogen ion to the base
- Looks similar to double displacement
- Always makes a salt and water
- Note: Scientific definition of salt is any soluble ionic compound
- $`H(A) + B(OH) \rightarrow AB + H_{2}O`$
- e.g., $`HCl_{(aq)} + NaOH_{(aq)} \rightarrow NaCl_{(aq)} + H_{2}O`$