If an electron is gained the atom has what kind of charge

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

Areaction is first order with respect to reactant x and second order with respect to reactant y. which statement describes the rate law for this reaction?

Uranium can supply energy for the worlds electricity without admitting harmful greenhouse gases which of these statements best describes an outcome of uranium mining