Answer:
her speed is constant as she runs, and her av. speed is 3 m/sec
Explanation:
av speed is total distance divided by total time, so 150/50=3
Answer:
Valence of iron in FeS2
Let the valency of iron be x
x+2(oxidation number of Sulphur)=0 as their is no charge on FeS2
As sulphur belongs to Group VI (chalcogens) so the valency/oxidation number of Sulphur is -2
x+2(-2)=0
x-4=0
x=4
So the valency/oxidation number of iron in FeS2 is +4
Explanation:
Hope it will help you monkey ^_^ it's crab
1.Joule
2.Kelvin
3.Gram
4.Meter
Answer:
Mixture of two elements
Explanation:
You can tell that it is an element since the atoms are only bonded to atoms of the same type. It is a mixture since the molecules are together in solution but aren't bonded together.
Answer:
wind direction, landforms, and surface winds.
