Which of the following answers properly show the math for converting 50 ° F into Celcius? Question 7 options:

(50 - 32) x (5/9)

(50 x 9/5) + 32

(50 - 32) x (9/5)

(50 x 5/9) + 32

50 - 273.15

50 + 273.15

It is important to wear proper protective equipment in lab even when not actively performing experiments because accidents can affect any researcher, even one not working on an experiment. select the best answer from the choices provided

Nonmetal halogen family atmoic mass 35

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.