Fill in the blank 1. A chemical reaction is an example of a change. 2. We can observe certain evidence of a chemical rea

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Fill In The Blank 1 A Chemical Reaction Is An Example Of A Change 2 We Can Observe Certain Evidence Of A Chemical Rea 1 (81.16 KiB) Viewed 14 times

Fill in the blank 1. A chemical reaction is an example of a change. 2. We can observe certain evidence of a chemical reaction taking place. Observable Evidence of Chemical Reaction Change in Chapter-5 Homework A (s) Change in 3. Chemical equation is an expression that uses chemical formulas and symbols to represent chemical reaction 2 NaHCO3 (s) A OR Formation of Symbols of Chemical Equations (1) (g) (aq) In a chemical equation, compounds before the arrow are after are 12.0 grams Na2CO3 (s) + H₂O (1) + CO₂ (g) 4. The law of conservation of mass states that: Calcium + Oxygen 112.6g 24.0g ****** 5. How many grams of water vapor will form if 25.0 grams of hydrogen gas mixes with 12.0 grams of oxygen gas? 2 H₂ (g) + O₂ (g) 25.0 g 2 H₂O (g) grams. ? and those 6. Predict the amount of oxygen gas that will remain after the reaction of 112.6 grams of calcium with 24.0 grams Calcium Oxide + Oxygen 125.6g ?g 1| Page