Answer:
false
in chemical reaction element doesnot change into another
Explanation:
Ca + Cl2 = CaCl₂
A synthesis <span>reaction.</span>
The density of water is a physical property.
You can measure it without changing the water to a different substance.
It is <em>not a physical change</em> because the water does not change to ice or steam.
You can observe a <em>chemical property</em> or a <em>chemical change</em> only if the water <em>changes to a different substance</em>.
<span>a. a chemical combination of two or more different materials.
For example: </span>For example, air is a mixture of gases, containing N, O, Ar, CO2
