It is used to 'date' samples as scientists can measure the amount of Carbon-14 isotope compared to a living organism.
Answer:
The correct option is;
D. (2)(56 g)
Explanation:
MgCl₂ + 2KOH → Mg(OH)₂ + 2KCl
From the balanced chemical reaction equation, we have;
One mole of MgCl₂ reacts with two moles of KOH to produce one mole of Mg(OH)₂ and 2 moles of KCl
Therefore, the number of moles of KOH that react with one mole of KCl = 2 moles
The mass, m, of the two moles of KOH = Number of moles of KOH × Molar mass of KOH
The molar mass of KOH = 56.1056 g/mol
∴ The mass, m, of the two moles of KOH = 2 moles × 56.1056 g/mol = 112.2112 grams
The amount in grams of KOH that react with one mole of MgCl₂ = 112.2112 grams ≈ 112 grams = (2)(56 g).
Answer:
Weak acids exist mostly as molecules with only a few ions in solution, therefore the bonds holding H and A together must be strong.
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Conductivity Behavior of Acids and Bases Compounds HCl
Appearance of light bulb bright
Classification Weak or Strong strong
Inference of Ions or Molecules ions
Explanation: My teacher send me the answer and it was correct for me