A11.0-m by 6.0-m by 3.0-m basement had a high radon content. on the day the basement was sealed off from its surroundings so that no exchange of air could take place, the partial pressure of22rn was 1.3 x 10-6 mmhg. calculate the number of112rn isotopes (12-3.8 days) at the beginning and end of 28 days. assume stp conditions. t-0 days: x 10rn atoms 1-28 days: x 10rn atoms

Will give brainliest it is a lab from k12 here is the linkfor each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. type your answer here. (score for question 3: of 5 points) were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. type your answer here. (score for question 4: of 5 points) make a general statement about the reactivity of the metals in this experiment. type your answer here.

Asap! will give brainiest when a heat wave strikes a region causing more people to run air-conditioning units, electrical demand increases. what needs to be done to meet this increased demand? raising the control rodslowering the control rodsremoving the control rods

Salt in oceans comes from and of rocks