Physical changes are changes affecting the form of a chemical substance, but not it`s chemical composition.
A physical change, changes the following:
-appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity, and many others.
Answer:
C. density(the degree of compactness of a substance)
Answer:
H2O2
Explanation:
2 hydrogen, 2 oxygen wikipedia it
Answer:
Zero to the power of zero, denoted by 00, is a mathematical expression with no agreed-upon value. The most common possibilities are 1 or leaving the expression undefined, with justifications existing for each, depending on context
Explanation:
Mass number is the mass number of that particular Element found in the periodic table and the atomic number is the atomic no. Again found in the periodic table