When does a change in energy occur?

1. In some physical changes, but not all.

2. In every physical change, but not in a chemical change.

3. In every chemical or physical change.

What is the outer part of the geosphere is called?

State of matter that keeps its shape an volume when it is placed in a different container

Explain how a saturated solution represents an equilibrium between the solution and any undissolved solute present

Find the 12 mole ratios between the reactants and products for the second reaction taking place in the airbags of cars. The balanced equation for the reaction is: 10Na + 2KNO3 → K2O + 5Na2O + N2 Will give brainlies!

Which structural formula represents a linear nonpolar molecule containing two polar bonds?

Which sub-layer thins out into space, where there is no air

Complete and balance the molecular equation, including phases, for the reaction of aqueous ammonium bromide, nh4br, and aqueous lead (ii) acetate, pb (c2h3o2) 2.

A magnesium atom has 2 valence electrons in its third shell. Which is a TRUE statement about what happens when it forms an ion? A. It will be an anion. B. It will have more electrons than protons. C.

What scientific discoveries led to changes in Dalton's atomic theory?

What does berkelium react with