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Chemistry
Chemical Reactions
Balancing Equations
Balance of the following equation Ca+O2=CaO
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What is 2Ca+O2>>2CaO
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Which of the following is the formation reaction for CaO(s) ?
A. CaO(s) Ca(s) + 21O2(g) B. Ca2+(aq) + O2–(aq) CaO(s) C. 2 Ca(s)
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You sound like you're on the right track but with no arrows your equations don't make sense. As for
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1. Ammonia gas can be prepared by the following unbalanced equation:
_____ CaO(s) + _____ NH4Cl (s) --> _____ NH3(g) + _____
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b. To determine the limiting reagent, we need to compare the amount of product that can be formed
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how do i balance this equation?
Ca + O2 -> CaO can you also explain to me how you got the answer?
Top answer:
You need twice as many Ca atoms as O2 molecules so 2 Ca + O2 now the right 2 Ca + O2 = 2 CaO
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Consider the equation:
Ca+O2→CaO What needs to be done in order to balance the equation? Responses Place a 2 in front of the
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Place a 2 in front of the O2 and the CaO.
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Balance the following the chemical equation:
_ Na2O + _ CaBr2 → _ NaBr + _ CaO a 1:2:1:1 b 1:1:2:1 c 1:1:1:2 d 2:1:1:1
Top answer:
The balanced chemical equation is: 1 Na2O + 1 CaBr2 → 2 NaBr + 1 CaO So, the correct answer is
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Balance the following the chemical equation:
_ Na2O + _ CaBr2 → _ NaBr + _ CaO
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The balanced chemical equation for the reaction is: 1 Na2O + 1 CaBr2 → 2 NaBr + 1 CaO
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Balance the following chemical equation:
_Na2O + _ CaBR2 → _ NaBr + _ CaO A. 1:1:1:2 B. 1:1:2:1 C. 1:2:1:1 D. 2:1:1:1
Top answer:
The balanced chemical equation is: 2 Na2O + CaBr2 → 4 NaBr + CaO Therefore, the correct answer is
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Balance the following the chemical equation:
_ Na2O + _ CaBr2 → _ NaBr + _ CaO a 1:2:1:1 b 1:1:2:1 c 2:1:1:1 d 1:1:1:2
Top answer:
The balanced chemical equation is: 2 Na2O + CaBr2 → 4 NaBr + CaO So the correct answer is c)
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Balance the following the chemical equation:
MgO + CaS → MgS + CaO
Top answer:
MgO + CaS → MgS + CaO The balanced equation is: MgO + CaS → MgS + CaO
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Balance the following the chemical equation:
_Na2O+_CaBr2 _NaBr+Cao
Top answer:
The balanced chemical equation is: 2 Na2O + CaBr2 -> 4 NaBr + CaO
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