Answer:
i can only help with 2 :( atimic mass is: 35.453 and number of electrons is:17
Explanation:
I'm not sure I'm sorry for that but I found this http://www.chem4kids.com/files/atom_ions.html
Answer:

Explanation:
Given

Required
Convert to meters per minutes

Start by converting the speed from miles to meters

So, we have:


Next, we convert time from hours to minutes

So, we have:


<em>Hence, the equivalent of 25 miles per hour is 670.56 meters per minutes</em>
Answer:
The answer would be tundra.
A rain forest has a lot of humidity because it rains a lot otherwise it wouldn't be called a rain forest.
Grassland has a somewhat high temperature and average humidity enough to keep it green and grassy hence grasslands.
A wetland has a lot of water but low temperatures. Still, humidity is water so wetlands aren't it.
Explanation:
Hope this helped.
A brainliest is always appreciated.