Reactivity trends of halogen:
1) Melting point and boiling points increased down the
group
2) Colour becomes darker.
E.g. Fluorine (pale yellow)
Chlorine (yellowish-green)
Bromine (reddish-brown)
Iodine (purplish-black)
Astatine (black)
3) The reactivity decreases down the group.
Reactivity:
F > Cl > Br > I > At
Answer:
They have the same number of valence electrons (5) so the body assumes they are the same element.
S2O2 because the molecular formula of SO is just SO because they are both diatomic elements, but the empirical formula is just the but mot simplified, or S2O2.
Answer: Waste Operators will handle less hazardous material.
Explanation: Since the electric car is electric it produces hazardous material and now that it doesn't it wont.
C. Weathering, plate movements and volcanoes destroyed many of
the craters
Explanation:
The earth is a dynamic planet. Both external and internal processes sculpt and shapes the surface and interior of the earth primarily from the energy from the sun and the primordial heat accumulated during the formation of the earth.
- The period of heavy bombardment of the earth resulted in the creation of craters and other impact features on the earth surface.
- As earth evolved, the process of weathering which is one of the tools of denudation caused the lowering and changing of the earth. Through this process sedimentary rocks were formed.
- The movement of the earth through plate tectonics also greatly shaped the earth. New materials from the interior were brought to the surface. Some existing parts were destroyed at subduction zones. Some also became elevated.
- Volcanism also brought new materials to the surface and this changed the terrain.
Learn more:
Asteroid brainly.com/question/12785992
Volcanoes brainly.com/question/5081327
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