When the drug heroin comes into contact with the Marquis reagent chemical what happens?

a. It burns up

b. It glows in the dark

c. It turns purple

d. It foams

What bonds are formed when electrons are shared equally?

Based on the information in the graph, which statement best applies to a gas? Its particles have the highest average kinetic energy. Its particles have the smallest volume of all three states of matter.

A certain shade of blue has a frequency of 7.03 * 1014 Hz. What is the energy of exactly one photon of this light?

Charlie is drinking a cup of soup which has a pH of 8. Jack is drinking a cup of orange juice with a pH of 6. which item has more free H + ions? Approximately how many more H + ions does the drink with more have?

A student isolated 25 g of a compound following a procedure that would theoretically yield 81 g. What was his percent yield?

The process by which water vapor changes to liquid water is called a. condensation. b. evaporation. c. freezing. d. melting.

Convert the pressure 0.75 atm to mm Hg.

What do you expect to see as the following redox reaction takes place? Mg (s) + ZnCl2 (Aq) = MgCl2 (Aq) Zn (s)

A high concentration of hydrogen ions means a solution of what? A. very acidic B. very basic C. neutral D. neither acidic or basic

Which interaction produces dispersive forces by creating temporary dipoles that induce dipoles in other molecules?