Hi! Science stands for “Systematic Comprehensive Investigation and Exploration of Nature Causes and Effects”.
What is science?
Science is the systematic study of the structure and behavior of the physical natural world. It is also use for experience or can say it is an experience. Scientists are people who test science/experiments for the worlds. Science really is just the study of the nature. Science use math em empathic and logic, which are sometimes called “formal science”.
The 3 indicates the third electron shell. (Which has only 1 electron in it in this configuration)
Hope this helps! :)
Answer:
It's b
Explanation:
I had the same exact question
# moles = mass (g) / Mr (relative atomic mass)
# moles = 458 / ((23*2)+32+(16*4)
# moles= 458 / 142 = 3.2253521126760...
= 3.23 moles
