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Update Unit 1: Chemistry Part 2.md

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Grade 10/Science/SNC2DZ/Unit 1: Chemistry Part 2.md
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## Representing Chemical Reactions ## Representing Chemical Reactions
- A Chemical equation! - A Chemical equation!
- Used to model what is happening during a chemical reaction. - Used to model what is happening during a chemical reaction.
- We use an arrow instead of an equal sign to show `beomces`, `reacts to form`, `produces` - We use an arrow instead of an equal sign to show `becomes`, `reacts to form`, `produces`
- On the **left** side, we always have the **`REACTANTS`**, (INPUT), these get used up in the chemical reaction - 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) - 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).
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- If carbonic acid ($`H_{2}CO_{3}`$) would be formed it instantly splits into water and carbon dioxide - If carbonic acid ($`H_{2}CO_{3}`$) would be formed it instantly splits into water and carbon dioxide
- This reaction occurs even if both products would be aqueous - This reaction occurs even if both products would be aqueous
- If this reaction occurs the product is written as water and carbon dioxide - If this reaction occurs the product is written as water and carbon dioxide
- $`H(A) + B(OH) \rightarrow AB + H_{2}O` or $`H(A) + B(CO_{3}) \rightarrow AB + H_{2}O + CO_{2}`$ - $`H(A) + B(OH) \rightarrow AB + H_{2}O`$ or $`H(A) + B(CO_{3}) \rightarrow AB + H_{2}O + CO_{2}`$
- e.g., $`HCl_{(aq)} + NaOH_{(aq)} \rightarrow NaCl_{(aq)} + H_{2}O`$ - e.g., $`HCl_{(aq)} + NaOH_{(aq)} \rightarrow NaCl_{(aq)} + H_{2}O`$