What function does the skull serve for the skeleton?

A.

movement

B.

protection

C.

support

D.

height

In which geologic era were the dinosaurs? A. Mesozoic B. Precambrian C. Cenozoic D. Paleozoic

The nucleus of an atom contains at least one proton. True or false

What are the rules of counting significant numbers?

A microscope containing two or more lenses is an

Other than carbon being relatively small, what is another reason that carbon can form so many compounds? the ability to form four covalent bonds the ability to change shape the ability to form a diatomic molecule the ability to split its electrons

Which atom has a change in oxidation number of - 3 in the following redox reaction K2Cr2O7 + H2O + S - - > KOH + Cr2O3 + SO2

Why does fluorine have a higher electronegativity than lithium?

What mineral is this? Irregularly shaped, white with nonmetallic luster, the hardness of 2.5, shows cubic cleavage and dissolves easily in water.

The passage of the USA Patriot Act of 2001 and the creation of the Department of Homeland Security reflect the determination of the United States government to (1) search for weapons of mass destruction in South Asia (2) increase the globalization

Is it possible for 2 different elements to have the same atomic number