Answer:
in disodium phosphate = 4 oxygen atoms
in phosphoric acid = 1 oxygen atom
Answer:
1 : any of more than 100 substances that cannot by ordinary chemical means be separated into different substances Gold and carbon are elements. 2 : one of the parts of which something is made up There is an element of risk in surfing. 3 : the simplest principles of a subject of study the elements of arithmetic.
Explanation:
A. True
you can see plasma. Or, technically, you can see the energy (light) given off by a plasma.
Answer:
Melting and evaporation both represent changes in matter that involve behavior at the molecular level.