Answer:
c
Explanation:
the oxygen in the air and water from the rain caused oxidation causing the copper wire to become tarnished.
Answer:
You didnt give use the choices you have but I can try to help. Climate can change when it snows,rains,when it is sunny,or cloudy.
Explanation:
The rain allows the climate to cool down depending in the weather out. Same with cloudy weather. Snow can also cause temperature to drop down. When it is sunny, the climate in the sun will be warm, until getting in the shade and it gets cold again.
Answer:
There are 21 prime numbers between 0 and 75.
Explanation:
2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73
Answer:
Group 15 elements
Explanation:
The nitrogen family is essentially characterized by this configuration. They are trivially know as the picnic tigers or the pectels. Elements in this group includes nitrogen, phosphorus, arsenic, antimony, Bismuth and Moscovium.
We now look at the electronic configuration of these elements.
Nitrogen -
[He] 2s2 2p3
Phosphorus -
[Ne] 3s2 3p3
Arsenic -
[Ar] 3d10 4s2 4p3
Antimony-
[Kr] 4d10 5s2 5p3
We can notice the configuration in the question in the elements.
