The coefficient of HCl in the balanced equation is 2. This is because the balanced equation shows that 1 molecule of CaCl2 reacts with 1 molecule of H2CO3 to form 1 molecule of CaCO3 and 2 molecules of HCl.
That's not a chemical equation. But I believe the coefficient (the number in front of HCl) is 1. Normally, when you write equations, you don't put the 1. It's just inferred.
The word equation "magnesium + fluorine → magnesium fluoride" translates to the balanced chemical equation 2Mg + F2 → 2MgF2. The coefficient for fluorine is 2, and the symbol remains F.
2hcl
The balanced equation for the reaction of potassium with oxygen is: 4K + O2 -> 2K2O The coefficient of oxygen in this balanced equation is 1.
The balanced equation for AI(NO3)3 is not provided, but in a typical chemical equation, the coefficient for AI(NO3)3 would be 1.
That's not a chemical equation. But I believe the coefficient (the number in front of HCl) is 1. Normally, when you write equations, you don't put the 1. It's just inferred.
The word equation "magnesium + fluorine → magnesium fluoride" translates to the balanced chemical equation 2Mg + F2 → 2MgF2. The coefficient for fluorine is 2, and the symbol remains F.
2hcl
The coefficient for water in the balanced equation is 6.
The balanced equation for the reaction of potassium with oxygen is: 4K + O2 -> 2K2O The coefficient of oxygen in this balanced equation is 1.
Coefficients in a chemical equation represent the number of units of the formula immediately following the coefficient that are involved in the balanced equation for the reaction.
The balanced equation is 2KHCO3(s) → K2CO3(s) + H2O(g) + CO2(g). The coefficient of carbon dioxide (CO2) in the balanced equation is 1.
The balanced chemical equation would be: NF3 + F2 -> N + 3F2 The coefficient for fluorine would be 2 and the symbol is F2.
The balanced equation is: C5H12 + 8O2 → 5CO2 + 6H2O. Therefore, the coefficient for oxygen in the balanced equation is 8.
The balanced equation for AI(NO3)3 is not provided, but in a typical chemical equation, the coefficient for AI(NO3)3 would be 1.
2NF3 --> N2 + 3F2
The coefficient for Ni(NO3)2 in the balanced equation depends on the overall reaction. Without knowing the full equation, it is not possible to determine the coefficient for Ni(NO3)2.