C
Carbon and its compound's stability means it is useful in synthesizing organic molecules which are used in the bodies of organisms.
Answer is: c. It is incorrect because sodium phosphate is a compound that has a single composition.
Sodium phosphate is chemical compound composed of atoms connected with chemical bonds.
Pure substance is made of only one type of atom (element) or only one type of molecule (compound), it has definite and constant composition with distinct chemical properties.
Pure substances can be separated chemically, not physically, that is difference between pure substances and mixtures.
The correct answer is that it is made of atoms that are covalently bonded together. Hope this helps.
Answer:
D
Gratitude allows for a person to gain weight.
Radioisotopes are widely used to diagnose disease and as effective treatment tools. For diagnosis, the isotope is administered and then located in the body using a scanner of some sort.