Balance the reaction. a coefficient of "1" is understood. choose option "blank" for the correct answer if the coefficient is "1."
hcl + zn → zncl 2 + h 2
the options are 2, 3, 4, and blank.

Much of the general structure and physical properties of the interior of the earth are inferred from: a)deep oil and gas bore holes b)geologic investigations c)analysis of seismic waves d) study of volcanoes

If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning the wood?

Areader can tell that the meaning of “obnoxious” will include “having the quality of something” because of the .a) prefix b)pronunciation c)suffix d) word root