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Update Unit 1: Chemistry Part 2.md
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# Chemistry
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## Acids
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- All acids contain hydrogen ions
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- Behave like molecular compounds while out of water
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- Behave like ionic compounds while aqueous
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- Hydrogen ions are released
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- Conduct electricity
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- Reacts with active metals depending on the activity series
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- Corrosive (reacts with skin)
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- Sour-tasting
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### Naming Binary Acids
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- $`HCl_{(g)} \rightarrow`$ hydrogen chloride
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- $`HCl_{(aq)} \rightarrow`$ **hydro**fluoric **acid**
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- Need to put the **hydro** prefix as it tells us its disolved in water and is an acid
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## Oxyacids
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### Naming Oxyacids
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- `ite` ions make `ous` acides (suffix). $`HCLO_2 = `$ Chlor**ous** acid
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- `ate` ions make `ic` acides (suffix). $`HCLO_3 = `$ Chlor**ic** acid
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- Prefixes stay the same
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## Bases
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- All bases contain hydroxide or carbonate ions
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- Behave like molecular compounds while out of water
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- Behave like ionic compounds while aqueous
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- Hydroxide ions are released
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- Conduct electricity
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- Reacts with fats and oils to form soap
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- Bitter-tasting
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## Chemical Change
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- Similar to chemical reaction
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## Representing Chemical Reactions
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- A Chemical equation!
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- Used to model what is happening during a chemical reaction.
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- We use an arrow instead of an equal sign to show `beomces`, `reacts to form`, `produces`
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- We use an arrow instead of an equal sign to show `becomes`, `reacts to form`, `produces`
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- On the **left** side, we always have the **`REACTANTS`**, (INPUT), these get used up in the chemical reaction
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- There can be plus signs to show multiple `reactants`. (Recipes, we are adding them together)
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- On the **right** side, we have the **`PRODUCTS`** (OUTPUT).
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- Looks similar to double displacement
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- Always makes a salt and water
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- Note: Scientific definition of salt is any soluble ionic compound
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- $`H(A) + B(OH) \rightarrow AB + H_{2}O`$
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- If carbonic acid ($`H_{2}CO_{3}`$) would be formed it instantly splits into water and carbon dioxide
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- This reaction occurs even if both products would be aqueous
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- If this reaction occurs the product is written as water and carbon dioxide
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- $`H(A) + B(OH) \rightarrow AB + H_{2}O`$ or $`H(A) + B(CO_{3}) \rightarrow AB + H_{2}O + CO_{2}`$
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- e.g., $`HCl_{(aq)} + NaOH_{(aq)} \rightarrow NaCl_{(aq)} + H_{2}O`$
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