At temperatures above 0°c, solid ice undergoes a spontaneous change to liquid water according to the following equation: H2O + heat = H2O(l)

the changes in H2O(s) involve

a) a release of heat and a decrease in entropy
b) a release of heat and an increase in entropy
c) an absorption of heat and an increase in entropy
d) an absorption of heat and a decrease in entropy​

Isec i will do it and them i will let you know

Use a magnet to separate iron, evaporate water, i'm not sure how to separate the other two i'm sorry but good luck

Answerd. may include all of these are many definitions of bases: the  brønsted-lowry definition of acids and bases says that bases are proton acceptors.the arrhenius definition of acids and bases says that bases increase [oh⁻] in solution (thereby producing oh⁻ ions)the lewis definition of acids and bases says that bases donate electron pairs.therefore, the sensible answer is that a base may include all of the described characteristics.