In chemical reactions, there’s an important idea called the conservation of mass. This means that the total mass of what you start with (the reactants) is the same as what you end up with (the products).
So, nothing is really lost or gained during a reaction. It’s just that the ingredients are mixed and rearranged.
For example, if you mix vinegar and baking soda, the weight before the reaction is the same as the weight after the gas bubbles form.
Now, let’s talk about energy. It’s connected to mass! While the mass stays the same, energy can change forms.
In some reactions, called exothermic reactions, energy is released. In others, called endothermic reactions, energy is absorbed.
To put it simply:
This idea helps us understand that even though atoms and molecules move around during reactions, the total mass and energy in a closed system stays the same!
In chemical reactions, there’s an important idea called the conservation of mass. This means that the total mass of what you start with (the reactants) is the same as what you end up with (the products).
So, nothing is really lost or gained during a reaction. It’s just that the ingredients are mixed and rearranged.
For example, if you mix vinegar and baking soda, the weight before the reaction is the same as the weight after the gas bubbles form.
Now, let’s talk about energy. It’s connected to mass! While the mass stays the same, energy can change forms.
In some reactions, called exothermic reactions, energy is released. In others, called endothermic reactions, energy is absorbed.
To put it simply:
This idea helps us understand that even though atoms and molecules move around during reactions, the total mass and energy in a closed system stays the same!