Answer:
Explanation:
As one moves down the vertical groupings of elements on the periodic table, it is evident that new shells are being added from top to down.
An atomic orbital is the region of space surrounding the nucleus where there is a high probability of finding an electron.
Down a group, the atomic radius increases as more shells are added to an atom.
Answer:
Repetition
Explanation:
The best term to describe this example is repetition and not replication.
Most times, to obtain an accurate and precise reading which is reliable, scientist makes several repeated measurements. The average gives the most reliable representation of the phenomenon being tested.
This process is called repetition.
On the other hand, duplicating an experiment is replication. Experiments are replicated to proof their validity.
- Since this is a brand new experiment where 16 height measurements are reported, we are dealing with a repetition situation.
The balanced chemical reaction is:
2Na + Cl2 = 2NaCl
We are given the amount of sodium to be used for the reaction. This will be the starting point of our calculations.
92.0 g Na ( 1 mol Na / 22.99 g Na ) ( 1 mol Cl2 / 2 mol Na ) ( 70.9 g Cl2 / 1 mol Cl2) = 141.86 g Cl2
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Answer:
Build wind-powered pumps to use groundwater
Explanation:
