Variolation Is a Procedure Once Used to Protect Against

question 21

Multiple Choice

Variolation is a procedure once used to protect against

• A)measles.
• B)bubonic plague.
• C)rabies.
• D)smallpox.

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Definitions:

Conjugate Acid

The species created when a base gains a proton (H+), forming a pair in which the acid and base differ only by one hydrogen atom.

Conjugate Base

A species formed by the removal of a proton (H+) from an acid.

Empirical Formula

The simplest ratio of the elements in a compound that gives the relative number of atoms of each element.

Molecular Formula

A notation that shows the number and type of atoms in a molecule, without indicating how they are connected.