What Word means the gradual change and build up of organisms in an enviroment

One way in which elements differ from each other is the structure of the electron cloud in each elements Atoms in electron cloud an electron that is farther away from the nucleus has

Compared to our solar system, the universe is

What determines the amount of energy an electron has?

How many moles of sulfuric acid (H2SO4) are needed to react completely with 6.8 moles of lithium hydroxide (LiOH) ? 2LiOH + H2SO4 → Li2SO4 + 2H2O

Which substance is the least likely to dissolve in water? A. Methanol (polar) B. Methane (gas) C. Vegetable oil (nonpolar) D. Table salt (ionic)

Obtaining scientific data from a distance is called?

What is organic chemistry?

What is the total number of electrons shared in a double covalent bond between two atoms? (1) 1 (3) 8 (2) 2 (4) 4

Which method separates mixtures according to the rates their components travel through a material? yhaoo answers?

How many protons are in the nucleus of the isotope in-115?