PLZ HELPP QUICK I NEED HELP ASAP PLZZ HELLP MEEE

Start an single atom tab. observe the decay of polonium-211. after each decay, press the reset nucleus button to watch the process again. write a description of alpha decay for po-211

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.

Which of the following is not one of the steps in the scientific method a. hypothesize b. summarize c. analyze d. familiarize