Physical properties are those that an object or trace evidence has with just its physical existence, without altering it in any way with chemicals.
true or false?
: )

TRUE

Explanation:

Those properties that can be observed easily and are measurable can be considered as physical properties. This property does not bring any changes in its chemical composition. Some of the examples of physical properties are boiling point, color, texture, and density.  

On the other hand, the chemical properties are those that can be seen only during the time of chemical reaction, and due to this reaction, the chemical composition of the substance alters. This is what marks the difference between physical and chemical properties.

Hence, the above statement is true.

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times