SER Use the periodic table to answer the questions below.
Which diagram shows the correct electron
configuration for nitrogen (N)?
11 tỷ -
1s 2s 2p
N N LLI
2p
1s
2s
也tt
1s 2s
DONE

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)