PLS HELP
Which of the following
elements tend to be radioactive?
Check all that apply.
O A. Ra
D B. o
Ос. Ас
D. Si

Note the ph and poh values labeled with letters on the ph scale below. based on log rules and the way ph is calculated, what is the difference in [oh– ] concentration between point a and point b. a) 10^1 b) 10^5 c) 10^6 d) 10^7

What is the correct term for living the most sustainable life you can within your current circumstances?

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here