What are three things that the elements Magnesium, Calcium and Barium have in common?
1 answer:
Answer:
1.They are all in the second group of the periodic table
2.They are an alkaline earth metal
3.They all have a shine to them
4.They are all highly reactive
5.They have a silver/white to them
6.They can all be found in the Earths crust
I'm not really sure of any others that they have in common and I thought to give extra so you could choose.
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If you have a book, read it!! I promise you, it tells you this answer!
Answer:
[H⁺] = 3.16 × 10⁻⁵ mol/L
Explanation:
Given data:
pH of solution = 4.5
Hydrogen ion concentration = ?
Solution;
pH = -log [H⁺]
we will rearrange this formula:
[H⁺] = 10∧-pH
[H⁺] = 10⁻⁴°⁵
[H⁺] = 3.16 × 10⁻⁵ mol/L
Answer:
Properties of metals, worksheet 6.1
Explanation:
Answer: 1.5 x 10^24
Explanation: Just multiply 2.5 by avagadro's number 6.2 x 10^23 to get the answer.
Yes, because you made a new substance to make a gas.
