Answer:
C2H5OH(l) + O2(g) → CO2(g) + ?H2O(l)
The coefficient should be 3
Explanation:
C2H5OH(l) + O2(g) → CO2(g) + ?H2O(l)
The chemical equation is a reaction between ethanol and oxygen . The reaction yield is carbon dioxide and water. Balancing the chemical equation requires one to make the number of atoms on the reactant side be equal to the number of atoms on the product side.
C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(l)
The hydrogen atom on the left hand side of the equation is 6. Therefore, the number of atom of hydrogen should be 6 on the right hand side. The number of oxygen atom on the left hand side is 7. Therefore, the number of Oxygen atom on the right hand side should 7 . Oxygen atom in carbon dioxide(right hand side) is 4 atoms, therefore, it requires 3 atoms of oxygen to make the oxygen atoms 7.
Using 3 as the coefficient of water in the equation will make hydrogen 6 and oxygen 3 .Adding the 3 oxygen to the already 4 atoms of oxygen in carbon dioxide will make oxygen 7 atoms
Answer:
(i) Formula = Fe₂(SO₄)₃
Name = Iron (III) Sulfate or ferric sulfate
(ii) Formula (NH₄)₂CO₃
Name = Ammonium Carbonate
Explanation:
Data given:
(i) Fe³⁺ and SO₄²⁻
ii) NH₄⁺ and CO₃²⁻
Formula and named of the compound =?
Solution:
(i) compound from Fe³⁺ and SO₄²⁻ and its name
writing a formula in combined form
- The symbols of two ions written together that is FeSO₄
- The charges shown on each atom is its valency and it show its combining tendency so iron will combine with 3 sulfate ions and sulfate ion will combine with 2 iron ions
- When two ions combine their valencies should be write on the base of the alternate ions.
- that is 2 will be at the base of Fe and 3 will be at the base of SO₄ without charges
- So the combined formula and name will be
compound formula form from Fe³⁺ and SO₄²⁻ = Fe₂(SO₄)₃
Name of the compound = Iron (III) Sulfate or ferric sulfate
______
(ii) compound from NH₄⁺ and CO₃²⁻ and its name
writing a formula in combined form
- The symbols of two ions written together that is NH₄CO₃
- The charges shown on each atom is its valency and it show its combining tendency so NH₄⁺ will combine with 1 carbonate ion and carbonate ion will combine with two NH₄⁺ ions
- When two ions combine their valencies should be write on the base of the alternate ions 1 should not be written.
- 2 will be at the base of NH₄⁺ without charge
- So the combined formula and name will be
compound formula form from NH₄⁺ and CO₃²⁻ = (NH₄)₂CO₃
Name of the compound = Ammonium Carbonate
False- you have to have a hearing with a judge to see how long it is revoked for.
Answer:
146 mL
Explanation:
Step 1: Write the balanced equation
H₃PO₄ + 3 NaOH ⇒ Na₃PO₄ + 3 H₂O
Step 2: Calculate the reacting moles of sodium hydroxide
119 mL of 0.315 M NaOH react.
Step 3: Calculate the reacting moles of phosphoric acid
The molar ratio of H₃PO₄ to NaOH is 1:3. The reacting moles of H₃PO₄ are 1/3 × 0.0375 mol = 0.0125 mol.
Step 4: Calculate the reacting volume of phosphoric acid
0.0125 moles of H₃PO₄ are in a 0.0855 M solution.
Answer:
Different Number of neutrons.