Define each of the terms below IN YOUR OWN WORDS Environmental Value System:

Entropy:

Equilibrium:

Feedback:

Feedback, negative:

Feedback, positive:

Gaia:

Model:

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.