Chemical formulas are like special codes that chemists use to explain what makes up different substances. Here’s how they work in reactions:
Elements: Each element has its own symbol made up of one or two letters from the periodic table. For example, "H" stands for hydrogen, and "O" stands for oxygen.
Subscripts: When you see a number after a symbol, it tells you how many atoms are in a molecule. For instance, in H₂O, the "2" shows that there are two hydrogen atoms.
Reactions: When compounds react with each other, we use these formulas to show what changes happen. For example, in the equation 2H₂ + O₂ → 2H₂O, it means that two hydrogen molecules and one oxygen molecule come together to make two water molecules.
Understanding these formulas helps us see what happens in chemistry!
Chemical formulas are like special codes that chemists use to explain what makes up different substances. Here’s how they work in reactions:
Elements: Each element has its own symbol made up of one or two letters from the periodic table. For example, "H" stands for hydrogen, and "O" stands for oxygen.
Subscripts: When you see a number after a symbol, it tells you how many atoms are in a molecule. For instance, in H₂O, the "2" shows that there are two hydrogen atoms.
Reactions: When compounds react with each other, we use these formulas to show what changes happen. For example, in the equation 2H₂ + O₂ → 2H₂O, it means that two hydrogen molecules and one oxygen molecule come together to make two water molecules.
Understanding these formulas helps us see what happens in chemistry!