Answer:
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Explanation:
shush suuush shuuush
Answer:
The diagram shows oxygen, O₂, which consists of two atoms of oxygen in the stratosphere, which are the two beings holding hands, forming a couple being broken up by the intense ultraviolet radiation of the Sun, such that the couple closest to the Sun are the ones that were broken into two O, atoms.
After being broken, the two beings (oxygen atoms), become free to move as they please, making them able to move faster than when they were still a couple. However, due to the likeness for their fellow beings, each of the single O beings rushed to meet the other two still coupled O₂ beings, whereby one O being rushing to meet one O₂ couple each, to form O₃ which is a new group consisting of three beings holding hands known as Ozone
Note, that O stands for atomic oxygen gas
O₂ stands for oxygen gas
O₃ stands for ozone gas
Explanation:
Elements and compounds are two types of substances ( I think). An element is any material made up of one type of atom- there could be multiples of this atom though for example oxygen which has a formula of 02. A compound is a substance made up of more than one type of atom for example H2O
Hope this helped! :)
What is called compound?
- In chemistry, a compound is a substance made up of two or more different chemical elements combined in a fixed ratio.
- When the elements come together, they react with each other and form chemical bonds that are difficult to break.
- These bonds form as a result of sharing or exchanging electrons between atoms.
a) Mg(OH)2 or Ni(OH)2.
Mg(OH)2 1.8×10–11
Ni(OH)2 2.0×10–15
Clearly, Ksp value for Mg(OH)2 is higher , meaning it is MUCH MORE SOLBULE than Nickel
therefore, choose Mg(OH)2.
b)
PbS 3×10–28
CuS 6×10–37
Clearly, PbS is much more soluble than CuS
since Ksp is higher .
c)
Ag2SO4 1.4×10–5
MgF2 3.7×10–8
Clearly, Ag2SO4 has higher Ksp, so it is much more soluble.
Learn more about compound
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False
Phase changes are physical changes and can be easily reverted by adjusting pressure or temperature.
