A student writes a chemical equation as given below. What is the molecular formula of zinc chloride if the reaction follows the law of conservation of matter?

A. 2ZnCl
B. Zn2Cl
C. ZnCl2
D. 2ZnCl2

Read these sentences from the text. near the equator, the tropics receive the most rain on a consistent basis. as a result, the fresh water falling into the ocean decrease the salinity of the surface water in that region. [. .] . . as the salt content of sea water increases, so does its density. what can you infer about how rain affects the density of surface water near the equator?

If a 12-v battery is connected to a circuit that has a current of 3.0 a, what is the total resistance in the circuit? 36 ohms 4 ohms 0.25 ohms

Why are pipes bursting in the in extremely cold weather?