ANSWER:
Your best go is C
EXPLANATION:
Metal is used as a utensil all around the world, c would be your best.
It DOES contain ionic bonds because covalent can’t dissolve in water or conduct electricity. The substance will not contain covalent bonds.
.445 • (43.6 - 15.2) • 168 = 2123.184
ANSWER - 2123.184 J
Since you didn't give the actual volume (or any of the experimental values) I can only tell you how to do it. Do the calculation using the real (determined) volume of the flask. Then, re-do the calculation with v = 125ml. Take the two values and calculate % error; m = measured vol; g = guessed vol.
<span>[mW (m) - mW (g)]/mW (m) x 100% </span>
<span>(they want % error so, if it is negative, just get rid of the sign) </span>
