I think the awnser would be C. becuase Pure Substances are made of mostly the same material and properties Such as: Nitrogen Gas, Oxygen Gas, Carbon, Iorn, Water, Sugar and Salt.
Answer:
Arsenic Trisulfide
Explanation:
It is an inorganic compound. It is bright yellow and insoluble in water.
Binary ionic compounds are named in the following pattern: metal followed by the nonmetal.
Galaxy Formation. One says that galaxies were born when vast clouds of gas and dust collapsed under their own gravitational pull, allowing stars to form. The other, which has gained strength in recent years, says the young universe contained many small "lumps" of matter, which clumped together to form galaxies.