Answer:
the first.
Explanation:
Newton's law of universal gravitation, in part, states that every particle attracts every other particle in the universe.
Heat, rotating air, and conditions that strengthen that rotation by extending it out along its axis are the ingredients that make fire whirls.
A typical atom has six protons and six neurons, and it has an atomic weight of 12 Amu. A carbon also has six electrons, but they are so small that they don’t contribute to carbons weight. An element is defined by the number of protons in its nucleus
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.
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Answer:
J.J. Thomson was the name of scientist
He used Cathode ray tube experiment
He named that particle as Electron.
Explanation:
no explanation required.
