Min-chemistry cr
gabe stone
english
59: 04
jia observes that adding a solution of sodium hydroxide to a clear liquid turns the liquid pink. she makes a hypothesis about
why the liquid changed color.
which characteristic is least important for her hypothesis to have?
ability to be tested
based on the opinion of her classmates
ability to be proven incorrect
based on her current knowledge
save and exit
submit

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a

може ли да зареждате повече информация, моля