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serg [7]
2 years ago
10

What is the SI unit used to measure weight?

Chemistry
1 answer:
stepladder [879]2 years ago
7 0

Answer:

The si unit used to measure weight is kilogram /kg

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What is the sign of the heat change for an exothermic reaction? for an endothermic reaction?
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Which is an example of ionization?
strojnjashka [21]
Answer: SO₂ + H₂O → HSO₃ ⁻ + H⁺

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3) Ionization may happen in different environments.

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Mg(OH)₂ → Mg ²⁺ + 2OH⁻

5) How much a ionic compound dissociates in water (ionize) depends on the Ksp (product solubility constant) which measures the concentrations of the ions that can be in the solution.


6) The Ksp for Mg(OH)₂ is very low, meaning that it will slightly ionize.

7) SO₂ + H₂O forms H₂SO₄, which is a strong acid, meaning that it will ionize fully in water, into the ions HSO₃ ⁻ and H⁺, so the third option is a good example of ionization.

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How many electrons are there in an atom of nickel?.
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