Answer:
A,the theory describes what atoms are and has not changed over time
Answer:
Magnesium reacts in strong and weak acids.
Explanation:
Acid solutions also, have pH values, less than 7. This is the correct answer, to this question.
Hope this helps!!!
Kyle.
Answer:
Number of atoms = 5.1345 x 10²³
Explanation:
Given:
Mass of sodium = 19.6
Find:
Number of atoms
Computation:
We know that atomic mass of sodium is 22.98
So,
Number of atoms = [Mass of sodium/atomic mass of sodium]Avogadro's number
Number of atoms = [19.6 / 22.98]6.02 x 10²³
Number of atoms = 5.1345 x 10²³
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Answer:
The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Aluminium, or 26.981538 grams.
