write a balanced equation - we have to do about 20 would be grateful if someone could show me first 2
1. silver + chlorine (arrow towards sc) silver chloride
2. hydrogen + chlorine (arrow towards) hydrogen chloride
Ag + Cl2 ==> AgCl
balanced is
2Ag + Cl2 ==> 2AgCl.
H2 + Cl2 ==> HCl
balanced is
H2 + Cl2 ==> 2HCl.
You will always know if the equation is balanced or not by checking it. Make sure the number of atoms of an element on the left has the same number of atoms of that element on the right (of the arrow). Also, rule #1 in balancing equations is: You may not change the subscripts to balance an equation. ONLY coefficients may be changed.
To write balanced equations, follow these steps:
1. Identify the reactants and products:
- In the first equation, the reactants are silver and chlorine, and the product is silver chloride.
- In the second equation, the reactants are hydrogen and chlorine, and the product is hydrogen chloride.
2. Write the skeleton equation:
- First Equation: Ag + Cl2 → AgCl
- Second Equation: H2 + Cl2 → HCl
3. Balance the equation:
- To balance the equation, adjust the coefficients in front of the chemical formulas to ensure that the number of atoms on both sides of the equation is equal.
- In the first equation, since there is only one silver atom on the left side and one on the right side, and there are two chlorine atoms on the left side but only one on the right side, the balanced equation would be: 2Ag + Cl2 → 2AgCl
- In the second equation, both sides already have equal numbers of atoms, so it is already balanced as written: H2 + Cl2 → 2HCl.
Now you can proceed to write the remaining 18 balanced equations using the same steps. Remember, balancing equations requires adjusting coefficients, not subscripts.