Question

What is chemistry?And Give some chemical changes in chemistry please friends ​

Answer 1

chemistry :

the scientific study of the structure of substances and what happens to them in different conditions or when mixed with each other

chemical changes :

A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity. Examples of chemical changes are burning, cooking, rusting, and rotting.

for example :

Examples of physical changes are boiling, melting, freezing, and shredding.

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Answer 2

HERE IS UR ANSWER DEAR

CHEMISTRY :

the science that deals with the composition and properties of substances and various elementary forms of matter.

CHEMICAL CHANGE :

• A chemical change happens when one chemical substance is transformed into one or more different substances, such as when iron becomes rust. ...

• A chemical change is different from a physical change, which doesn't rearrange atoms or molecules and produce a completely new substance.

• Some signs of a chemical change are a change in color and the formation of bubbles.

• The five conditions of chemical change:

• color chage,
• formation of a precipitate,
• formation of a gas,
• odor change,
• temperature change.