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Which number should go in the blank? Mn + _ HNO₃ → Mn(NO₃)₂ + H₂
1,3,2
No
2
2
1,2,1,2
2
40
1,2,1,1
Balance this equation. _CH₄ + _O₂ -- _CO₂ + _H₂O
1,3,2
No
2
2
1,2,1,2
2
40
1,2,1,1
What are the coefficients that would properly balance this equation? __Ca + __H₂O -- __Ca(OH)₂ + __H₂
1,3,2
No
2
2
1,2,1,2
2
40
1,2,1,1
What is the total number of atoms present in 5Na₃PO₄
1,3,2
No
2
2
1,2,1,2
2
40
1,2,1,1
Balance this equation- __P₄ + __O₂ -- __P₂O₃
1,3,2
No
2
2
1,2,1,2
2
40
1,2,1,1
Is the equation balanced?: 2H₂O + O₂ -- 4MgO + 3Fe
1,3,2
No
2
2
1,2,1,2
2
40
1,2,1,1
How many HCl molecules do you need to balance this equation? Mg + __HCl --- MgCl₂ + H₂
1,3,2
No
2
2
1,2,1,2
2
40
1,2,1,1
What coefficient should be used to make the following equation balanced? N₂+O₂-- _NO
1,3,2
No
2
2
1,2,1,2
2
40
1,2,1,1
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