Why do chemicals react though they attained stability?

CaO is stable
H2O is stable
Then how CaO +H20 --> Ca(OH)2

You may ask me why I don't search in Google or ask a teacher, I did, but I am not quite getting it..

Stable is relative. Molecules are strings of clicky magnet atoms which can rearrange. They usually hold, but atoms can switch loyalty if they find a stronger magnet, making them unclick. This often involves electron sharing. In your example you can imagine the Ca2+ and O2- strongly attract and may dismiss Hydrogen atoms they don't need.

According to thermodynamics the driving force be an increase of chaos as well. Remember that there are endothermic reactions which even take the necessary energy from the surrounding.

@s2numbuq35i thankuu I really like that example!

When CaO (calcium oxide) reacts with H2O (water) to form Ca(OH)2 (calcium hydroxide), the reaction occurs due to the chemical properties of the substances involved. Although both CaO and H2O are stable compounds individually, their combination leads to the formation of Ca(OH)2 through a chemical reaction. This reaction involves the calcium oxide reacting with water to produce calcium hydroxide. The balanced chemical equation for this reaction is CaO + H2O Ca(OH)2. This process is essential in various applications like the construction industry, water treatment, and more.
Needs just a search engine 2 be frank...

@err0r909 said in #6:
Em.. thanks..?but I feel like u just typed my question in words in different ways.. no offence
Which grade are you in btw? By chance 10th CBSE?

Sorry, still have to accustome on this interface and site and exploring a bit. I know no thing about Physics or chemical reactions. I texted as well, suffice a search engine and you have answer.

what is the chemical reaction between cao and h2o?
The chemical reaction between CaO (calcium oxide) and H2O (water) is the formation of Ca(OH)2 (calcium hydroxide) through an exothermic reaction. This reaction is represented by the balanced equation CaO + H2O Ca(OH)2. The reaction involves calcium oxide reacting with water to produce calcium hydroxide, as demonstrated in
1; byjus.com/question-answer/calcium-oxide-water-calcium-hydroxide-heat-the-chemical-equation-for-the-given-word-equation-is/
2: www.perplexity.ai/search/CaO-is-stable-W6fhmr57T7WSlcFC9d1vUw/
. The process is essential in various applications like the construction industry, water treatment, and more

Just the right search engines...