Answer:
It would have a charge of +2.
Explanation:
A proton has a charge of +1, an elctron has a charge of -1, and a neutron has a charge of 0. Ignore the neurons since they have a charge of 0. Since there are 20 protons and 18 electrons (20-18), the overall charge of the atom is +2.
Answer:
Sulfuric acid + Zinc = reactant
Zinc sulfate + hydrogen = product
Lead oxide + carbon = reactant
lead + carbondioxide = product
Explanation:
Chemical equation:
Sulfuric acid + Zinc → Zinc sulfate + hydrogen
H₂SO₄ + Zn → ZnSO₄ + H₂
In this reaction sulfuric acid and zinc react to produce the zinc sulfate and hydrogen. That's why sulfuric acid and zinc are reactant. While zinc sulfate and hydrogen are products.
2nd reaction:
Lead oxide + carbon → lead + carbondioxide
2PbO + C → 2Pb + CO₂
In this reaction Lead oxide and carbon react to produce the lead and carbondioxide. That's why Lead oxide and carbon are reactant. While lead and carbondioxide are products.
Answer:
SnCrO4
Explanation:
Tin has a charge of 2+
Chromate has a charge of 2-,
therefor, the formula is equal.
<span>Chemical reactions at the Earth’s surface </span>
MgCl₂(aq) + 2LiOH(aq) = Mg(OH)₂(s) + 2LiCl(aq)
Mg²⁺ + 2Cl⁻ + 2Li⁺ + 2OH⁻ = Mg(OH)₂ + 2Li⁺ + 2Cl⁻
Mg²⁺ + 2OH⁻ = Mg(OH)₂ <span>the net ionic equation</span>
