Answer:
Total mass of the reactant = 2+2.5 =4.5 mg
Total mass of product = 4.15 mg
therefore, mass of unreacted oxygen = 4.50-4.15 = 0.35 g
Answer:
empirical formula is C7H3NCl2
Explanation:
too much work too explain and im lazy
B, they then interpret that data to find their answers
After 3 half life periods you would have 5 grams of krypton left because half of 40 is 20 half of 20 is 10 and half of 10 is 5
Always use least amount of sig figs possible. So this 9.7 would be (answer): 2 sig figs
