Answer:
during reaction magnesium lises ions.
Explanation:
magnesium reacts by losing two ions which makes it smaller in size.
1) List the reactants: sodium bicarbonate (NaHCO₃) and citric acid (H₃C₆H₅O₇).
Reactants undergo change during a chemical reaction.
2) List the products: water (H₂O), carbon dioxide (CO₂) and sodium citrate (Na₃C₆H₅O₇).
Products are the substances formed from chemical reactions.
3) The balanced chemical equation:
3NaHCO₃ + H₃C₆H₅O₇ → 3H₂O + 3CO₂ + Na₃C₆H₅O₇.
Answer:
[Fe⁺³] = 0.0010 M
[SCN⁻] = 0.0006 M
Explanation:
First we<u> calculate how many moles of Fe⁺³ and SCN⁻ were added</u>, using <em>the given volumes and concentrations</em>:
- Fe⁺³ ⇒ 5.00 mL * 0.0020 M = 0.010 mmol Fe⁺³
- SCN⁻ ⇒ 3.00 mL * 0.0020 M = 0.006 mmol SCN⁻
Now we can <u>calculate the initial concentrations</u>, after <em>calculating the new volume of the solution</em>:
- New volume = 5.00 mL + 3.00 mL + 2.00 mL = 10.00 mL
- [Fe⁺³] = 0.010 mmol / 10.00 mL = 0.0010 M
- [SCN⁻] = 0.006 mmol / 10.00 mL = 0.0006 M
Answer:
For metal reactivity increases as you go down a group, for nonmetal reactivity decreases as you go down a group.
