What elements are found in all hydrocarbons? a. hydrogen and helium c. hydrogen and carbon b. carbon and oxygen d. nitrogen and carbon

1362205.2 in scientific notation

Which best explains the difference between a monomer and a polymer? A monomer is larger than a polymer. A monomer contains carbon and a polymer does not. A polymer contains carbon and a monomer does not. A polymer is larger than a monomer.

Which statement best describes the relationship between the nervous system and the muscular system? 1. The nervous system controls the muscular system. 2. The muscular system controls the nervous system. 3.

What is the total charge of a nucleus of a nitrogen atom?

The ionization energies (IE) of the aluminum ion (A1P+) are 2744.7,577.6, 11577, and 1816.6 (kJ/mol). Which is the fourth ionization energy of Al^3+?

How many grams of NaOH are needed to make 500 mL of a 2.5 M NaOH solution

During its life cycle, an amphibian lives both on land and in water.

An atom that contains 22 protons, 23 neutrons, and 22 electrons would have a mass of approximately

Compared with a ph of 7, a solution of ph 5 has what times/fraction of the hydrogen concentration?

Write a formulae equation to represent the combustion of carbon to form carbon dioxide and the thermal decomposition of magnesium carbonate