Carbon dioxide fire extinguishers were developed to fight fires where using water would be hazardous. What effect does the carbon dioxide have on a fire?

A) changes the mole ratio of the reactants.

B) decreases the potential yield of the reaction.

C) slows the reaction by limiting the reactant oxygen.

Asample of silver (with work function ? = 4.52 ev) is exposed to an ultraviolet light source (? = 200 nm), which results in the ejection of photoelectrons. what changes will be observed if: silver is replaced with copper (? = 5.10 ev) more photoelectrons ejected no photoelectrons are emitted fewer photoelectrons ejected more energetic photoelectrons (on average) less energetic photoelectrons (on average)

For each of the following types of reactions, write a general reaction formula in the symbolic form—for example, a + b → ab. single-displacement double-displacement synthesis decomposition

In saturated organic compounds, all the bonds between carbon atoms are called?