Answer:
it's a precipitation reaction.
Explanation:
the solid produced is insoluble with water–making it a precipitate.
Answer:
gravitational potential energy
Explanation:
a. You can rule out kinetic energy because it is a different type (the energy of motion).
<u>b. this is correct, because it is the energy that depends on an objects place on the gravitational field. As you can imagine, an object resting at a high place could be moved by gravity if it has the chance to fall.</u>
c. I am assuming you meant elastic, and that can be ruled out because while that is potential energy, it is dependent upon being stretched (for example a rubber band holds elastic energy when stretched).
d. mechanical energy is the sum of both kinetic and potential energy, and the question specifically asks about potential energy.
Answer:
0.716
Explanation:
First, write the balanced equation:
3 H2CO3 + 2 Fe(OH)3 ----> Fe2(CO3)3 + 6 H2O
Second, go from the molarity of H2CO3 to liters of Fe(OH)3
(Pull mole ratio from balanced equation)
1.22/1L x 0.0880/1 x 3molH2CO3/2molFe(OH)3 x 1/0.225L
Use calculator, and you end up with 0.7157333
Round to 0.716
