The answer is (2) chlorine. We can figure out some rules of properties of elements from the periodic table of elements. One of the important rule is that the elements which belongs to the same group has the similar properties. Fluorine and chlorine belong to the same group.
D. Since it's atomic # is 14 it has 14 electrons and it has 4 valance electrons because it is 4 over.
Answer:
I am going to chose your apple on your breakfast plate. Somebody plantes the apple seed. The apple tree takes time to grow. Once the apples are ready to be picked they are picked. Then the apples are sorted and go off to different schools like your school. Which is where you pick the apple up and put it on your plate.
Explanation:
1) use the formula PV=nRT
2) Plug in given values: P(8.77 L)= (1.45 mol)(0.0821)(293 K)
3) isolate P: P= (1.45x.0821x293)/(8.77)
4) solve: P=3.98 atm
