What's a closed system? Explain

Light energy travels in the form of A. sound waves B. electromagnetic waves C. convection currents D. radiation waves

Identify the oxidizing agent and the reducing agent in the following reactions: (i) 8NH3 (g) + 6NO2 (g) = > 7N2 (g) + 12H2O (l) (ii) Zn (s) + AgNO3 (aq) = > Zn (NO3) 2 (aq) + Ag (s) (unbalanced)

How does the gas propellant move when an aerosol can is used? from a region of low pressure to a region of equally low pressure from a region of high pressure to a region of lower pressure from a region of low pressure to a region of higher pressure

phosphorus has an atomic mass of 31 and an atomic number of 15, so the number of nuetrons must be?

B) What happens to the soup water when elisya blows it harder with the soap bubble blower

Identify the medium for the following waves: • The Wave Exercise waves: • Ripples on a pond: • Sound waves from a stereo speaker: • Seismic (earthquake) waves:

What is most believed by most scientists about the age of our solar system.

Just as heat can denature enzymes, so can a change in the pH. Enzymes that normally work in an acidic environment in the body can become denatured if the pH becomes too alkaline.

In a reversible reaction, both the forward and reverse reactions take place A. at the same rate. B. at two different rates. C. at varying, unequal rates. D. under different experimental conditions.

Choose the element that would be the most reactive of the three.