Reply asap : a substance that cannot be broken down into a simpler substance is called an
animal
organ system
element
organism

Which is true of the reactants in this displacement reaction? fe + 2hcl fecl2 + h2 a. the reactants are located to the left of the arrow in the chemical equation. b. the reactants contain 1 iron atom, 2 hydrogen atoms, and 1 chlorine atom. c. the reactants are the atoms, molecules, or compounds formed in the reaction. d. the reactants have the same physical and chemical properties as the products.

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

George is a dalmatian puppy. describe what happens to light that allows you to see george’s black and white coat.