Consider the statement found on the assembly instructions for a piece of patio furniture: “The iron metal surface can be cleaned by soaking it in muriatic acid.”
Which unbalanced chemical reaction below represents this statement the best?
| A. |
Fe + H2O → Fe2O3 + H2 |
|
| B. |
Fe + HCl → FeCl2 + H2 |
|
| C. |
Fe + HNO3 → FeCl2 + H2 |
|
| D. |
Fe2O3 + HNO3 → FeCl2 + H2O |
Consider the statement found on the assembly instructions for a piece of patio furniture: “The iron...
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) 1) One mole of any substance contains Avogadro's number of particles of that substance. What is the numerical value of Avogadro's number? A) 12.01 23 Avagrans t Male aton 6022 x1o atums B) 6.022 x 1023 C) 6.022 x 10-23 D) 1.661 x10-24 E) 1.00 x10-14 2) What is the mass of 4.00 moles of helium, the gas commonly used to fill...