Answer: Option (e) is the correct answer.
Explanation:
Since, the beaker contains NaOH solution whose pH is 13. As pH of NaOH is greater than 7 so, it means that this solution is basic in nature.
Whereas pH of HCl solution is equal to 1. As its pH is less that 7 so, it is acidic in nature.
Hence, when we add 10 ml of HCl into 100 mL of NaOH then there will be a slight decrease in pH of the solution because an acid is being added into the NaOH solution.
Thus, we can conclude that the statement pH of the beaker's contents falls, correctly describes the results of this mixing.
Answer:
All options are correct
Explanation:
Thompson's cathode ray experiment lead to the postulation of the Thompson model of an atom, where negatively charged particles (electrons) were embedded in a positively charged cloud of protons. This model concluded that all atoms contain negatively charged particles and also positively charged particles which makes the atom electrically neutral. It also validated that these cathode rays have mass.
Answer:
The heat from the Earth's cores radioactive process makes the lithospheric plates move sometimes away or toward each other.
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answer: C) 1.6 g
explanation: Molarity is the moles of solute present per liter solution.
The given molarity of the solution is 0.01 M.
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