Purpose: To observe chemical changes during the different types of chemical reactions that can occur and to write balanced chemical equations for
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Are the hypotheses and variables correct (to the problems) ? If not then explain. variables: independent: chemicals or molecules involved dependent: chemical reaction type 15912363

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Purpose: To observe chemical changes during the different types of chemical reactions that can occur and to write balanced chemical equations for these reactions. A B Problem: B H 2 CO 3 S 1. What type of reaction will occur when we combine CO2 with HO?- BX SR2. What type of reaction will occur when we combineCuCI, with A1? 2Al C| 3 +3Cu Ay BX DR 3. What type of reaction will occur when we combine Cuso, with2NaOH? - CulOH) + Na, Soy N4. What type of reaction will occur when we combine HCI with NaOH? - Nacl + H, O OH = 1 H = 13 H20 (59H) ( water ) Hypothesis: (2 marks) 1 . if ... we combine CO 2 with H 2O CO2 + H, 0 - H 2CO 3 then ... a synthesis reaction will occur. 2. if ... we combine Cull, with Al then... a single replacement reaction will occur. 3 Cuck 2 + 2Al - 2 AlCl + 3 Cu 3. if... we combine Cusoy with NaOH Cusoy + 2 NaOH - Cu(OH) 2+ Naz 50y then ... a double replacement reaction will occur. 4. if... We combine HCI with NaOH then... a neutralization reaction will occur. HCI + NaOH Nacl + H 20

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