Alkali metals react explosively in water, primarily due to the production of hydrogen gas. Sodium metal is no exception, as shown in this balanced equation:
2 Na + 2H2O → 2 NaOH + H2
Two moles of sodium metal are dropped into a large bucket of water. What should be the TOTAL mass of the products in this reaction?
46 grams
82 grams
41 grams
42 grams
The bucket of water is obviously more than needed for this reaction. What is the actual mass of water needed to react with the two moles of sodium metal?
18 grams
36 grams
9 grams
47 grams
If the hydrogen produced ignites, it will react with the oxygen in the air to form water. Which of the following is the correct balanced equation for that reaction?
2 H + O → H2O
2 H2 + O2 → H2O
H2 + O2 → H2O
2 H2 + O2 → 2 H2O
The atoms in the diatomic hydrogen (H2)produced by the reaction of sodium and water are joined together by