Question

writing chemical equation rules

Answer 1

Hiiii machiiii ✋....

➡️ Here are the rules to follow when balancing equations:

➡️ Determine the correct formulas for all the reactants and products in the reaction.

➡️ Begin balancing with the most complicated-looking group. A polyatomic ion that appears unchanged on both sides of the equation can be counted as a single unit.

➡️ Save the elemental (single elements) reactant and products for last, especially if it is hydrogen or oxygen.

➡️ Keep your eye out for diatomic molecules such as oxygen, hydrogen, and the halogens.
If you get stuck, double the most
complicated-looking group and try again.

➡️ Finally, make sure that all coefficients are in the lowest-possible ratio.

➡️ Know when to quit! None of the reactions you will encounter will be that difficult. If the coefficients are getting wild, double-check what you’ve done since you may have a simple mistake.

EXAMPLE :

Write the balanced equation for the reaction between aluminum sulfate and calcium chloride, which produces aluminum chloride and calcium sulfate.
Explanation
Write the chemical formulas on their correct sides:
Al2(SO4)3 + CaCl2AlCl3 + CaSO4
In this reaction, the aluminum sulfate looks the most complicated, so start there. Look at what happens with sulfate—since it remains sulfate on the right side of the reaction, treat it as a unit. You have three on the left side and only one on the right side, so place a coefficient of 3 in front of calcium sulfate. Now deal with the aluminum. You have three on the left and one on the right, so place a coefficient of 2 in front of aluminum chloride. Last, you must place a coefficient of 3 in front of calcium chloride.
Al2(SO4)3 + 3CaCl22AlCl3 + 3CaSO4
Count the atoms on both sides of the reaction and you’ll see that you’re done.

Hope it help you!!! ☺️ ☺️ ☺️ ❤️❤️❤️

Answer 2

here is your answer •✌ ✌ ✌

1.write chemical equation with correct valency exchange•

2.after writing chemical equation .balance both sides well•

3. make sure number of atom in both sides equal•

example here:-

▶this is unbalance reaction.
h2+o2--------->>h20

▶now here is balance reaction.
2h2+o2--------->>2h20

➡Lhs side :-

number of hydrogen - 4
number of oxygen -2
▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪

➡Rhs side:-

number of hydrogen - 4
number of oxygen -2
▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪▪

Now number of atoms both sides equal•