Choose the correct description of elements from the options below. Select the correct answer below: A) They can only be monoatomic.
B) They can only be diatomic.
C) They are mixtures.
D) They contain only one type of atom.

Areaction is first order with respect to reactant x and second order with respect to reactant y. which statement describes the rate law for this reaction?

Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?