What do the colors produced by fireworks indicate? a. a physical change c. a state change b. a chemical change d. an element change

As the temperature of a liquid goes up, the average speed of its particles. This means that the kinetic energy of the particles

What is the function of autotrophs in the carbon cycle?

The __of friction is a number that represents the resistance to sliding between two surfaces in contact with one another. O A. value B. number C. coefficient D. force

What does the term inert refer to?

How does cleanse blood leave the kidney

How do the products and reactants of a chemical change compare? The mass of the products is greater than the mass of the reactants because energy is taken in by the reaction.

Calculate the molecular mass of ferric oxide (FE3O4)

Which of the following is a technique used in relative dating? Beta decay Index fossil correlation Isotope ratios Radiocarbon dating

Methanol enters a distillation column at 43 c. the column does not have a reboiler and uses open steam for heating. the column is at 101.3 kpa. the steam is pure water and is a saturated vapor.

The wavelength of a specific in the infared is 4 x 10^-6 meters. given that the speed of light is 2.998 x 10^8 m/s, what should be the frequency of this infrared wave?