Balancing Chemical Reactions Question Preview (ID: 61465)
Balancing Chemical Reactions.
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What coefficient should be used to make the following equation balanced? N₂+O₂-- _NO
a) 1
b) 2
c) 3
d) 4
How many HCl molecules do you need to balance this equation? Mg + __HCl --- MgCl₂ + H₂
a) 1
b) 2
c) 3
d) 4
What is the total number of atoms present in 5Na₃PO₄
a) 5
b) 55
c) 40
d) 8
Balance this equation _Al +_HCl -- _H₂ +_AlCl₃
a) 2,6,3,2
b) 1,1,1,1
c) 4,12,3,4
d) 2,1,4,5
What are the coefficients that would properly balance this equation? __Ca + __H₂O -- __Ca(OH)₂ + __H₂
a) 2,1,2,1
b) 1,2,2,4
c) 1,2,2,1
d) 1,2,1,1
What is the right ratio of chemicals for the Balanced Chemical Equation?__CO + __Fe₂O₃-- __Fe + __CO₂
a) 3,2,1,1
b) 3,2,2,4
c) 3,1,2,3
d) 3,2,2,1
Which number should go in the blank? Mn + _ HNO₃ → Mn(NO₃)₂ + H₂
a) 1
b) 2
c) 3
d) 4
Is the equation balanced?: 2H₂O + O₂ -- 4MgO + 3Fe
a) Yes
b) No
c)
d)
Balance this equation- __P₄ + __O₂ -- __P₂O₃
a) 1,1,1
b) 2,1,3
c) 1,2,3
d) 1,3,2
Balance this equation. _CH₄ + _O₂ -- _CO₂ + _H₂O
a) 1,2,1,1
b) 2,1,2,1
c) 1,2,1,2
d) 2,2,1,1
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