2. If the half-life of Francium-233 is 22 minutes, how much time must elapse in order for 60 grams of a 64 gram sample to undergo decay? In other words, after how many minutes will you only have 4 grams of the original isotope
remaining?

Mrs. smith ordered a root beer float (vanilla ice cream + root beer). mrs. smith noticed that the three states of matter (solid, liquid, and gas) all existed simultaneously in her root beer float. a. identify each phase of matter in the root beer float. b. describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? ) c. identify one phase change you would see in a root beer float and described what causes this change.

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

May someone me with these science questions