Answer:
O separating salt from seawater
Explanation:
I had same Question
Koby needed to break the baking soda to provide a larger surface area for reaction thereby increasing the rate of reaction.
<h3>Rate of reaction?</h3>
The term rate of reaction refers to how quickly or slowly a reaction proceeds. The surface area of solid reactants is an important factor that influences the rate of reactions when a solid reactant is involved.
Hence, Koby needed to break the baking soda to provide a larger surface area for reaction thereby increasing the rate of reaction.
Learn more about rate of reaction: brainly.com/question/8592296
<span>I would say D AlCl3.
covalent bonding is when 2 or more elements share electrons (usually when nonmetals bond with nonmetals)
ionic bonding is when one element steals another's electrons (usually when nonmetals bond with metals)</span>
If you go to quizlet and search the quiz name you’ll find the answers to the entire quiz. Most of the time quizlet has the quizzes I search. It’s really helpful. It doesn’t give an explanation though just the answer.
AB----> A + B
rate= k(ab)^2
by use of integrated second order rate law
1(/Ab)t = 1/AB)0 + Kt
t= time
k=constant
(AB)0 =initial concentration
(AB)t= final concetration
1/(ab)t= 1/1.5 + 0.20 x12.9 = 3.35
1/(ab)t = 3.25 multiply both side by ( ab)t
1= 3.25(ab)t divide both side by 3.25
(ab)t is therefore=0.308