Regents Chemistry redox, organic and nuclear chemistry quiz quiz

What is the oxidation number of a free element, such as $\text{O}_2$ or $\text{Fe}$?

Oxidation is best defined as

In the reaction $\text{Zn} + \text{Cu}^{2+} \rightarrow \text{Zn}^{2+} + \text{Cu}$, which species is the oxidizing agent?

In the oxidation half-reaction, the electrons appear on the

In any electrochemical cell, reduction occurs at the

A voltaic cell converts

Which is the general formula for the alkane series?

What is the name of the straight-chain alkane $\text{C}_3\text{H}_8$?

A compound containing the $-\text{COOH}$ functional group is classified as

Which reaction produces an ester and water from an organic acid and an alcohol?

Which particle has the symbol $^{4}_{2}\text{He}$ and a charge of $+2$?

In the equation $^{14}_{6}\text{C} \rightarrow {}^{14}_{7}\text{N} + X$, the particle $X$ is

A radioisotope has a half-life of $4.0$ days. What fraction of an original sample remains after $12.0$ days?