Consider the following equations. For each, decide whether it represents a chemical reaction or a physical change.

Question

Consider the following equations. For each, decide whether it represents a chemical reaction or a physical change.
	a.  SnCl4(aq) + 4H2O(l)   Sn(OH)4(s) + 4HCl(aq)
	b.  4K(s) + O2(g)    2K2O(s)
	c.  NaCl(s)   Na+(aq) + Cl-(aq)

DrBob222 · Answer

If the products are different from the reactants you have a chemical change; otherwise it's a physical change.