If an object is stationary all forces must be?

Name two elements that have properties similar to those of beryllium, Be, and have average atomic masses higher than 130

Consider the diagram below. What does D represent? A. energy of the products B. energy of the reactants C. reactants, Q + R D. products, N + M

Which element would most likely have chemical properties similar to that of magnesium (Mg) ?

Which of the following is an example of a model? A-pV B-a geographical map C - a belief that aliens exist D-all the above

Classify each description by the phase change it depicts. melting freezing evaporation condensation

When aqueous solutions of chromium (II) iodide and sodium phosphate are combined, solid chromium (II) phosphate and a solution of sodium iodide are formed. The net ionic equation for this reaction is:

Why we cannot see an atom with a naked eye?

How do earthquakes happen? A. Because of a release of pressure from plate movement B. Only because of a volcanic eruption C. Because of motion of ocean waves D. Only because of a lack of pressure between plates

What happens when two objects made out of different materials are rubbed together? Subject: Electricity

In a redox reaction, which ion would you expect to be more easily reduced? In a redox reaction, which ion would you expect to be more easily reduced? Hypochlorite ion, ClO - They are equally reducible. Not enough information is given.