What's the word of a theory that states that earths crust and upper mantle are broken into sections which move around on a special layer of the mantle?

What is the total number of electrons in a Mg2 + ion? (1) 10 (3) 14 (2) 12 (4) 24

What is the sum of all charges in the formula for an ionic compound? A +1 B 0 C -1

You are asked to synthesize each of the molecules below starting with benzene and any other reagents you need.

Determine how many protons, neutrons, and electrons are in a bromine atom that has a mass number of 73

Given the equation: H2O (s) H2O (l) At which temperature will equilibrium exist when the atmospheric pressure is 1 atm? (1) 0 K (3) 273 K (2) 100 K (4) 373 K

Calculate the density of an object with a mass of 30g and volume of 6cm^3

What happens when light from the sun passes through any type of matter? the light slows down. the light speeds up. most of the light is absorbed. most of the light is reflected.

What is the chemical name for Fe (HCO3) 2

How are protons, electrons, and neutrons correctly compared

You compare two layers to a because the crust and upper mantle are solid