Answer:
iron .. titanium.. nickel....aluminum... sulfur... and calcium
Answer:
Decomposition reaction
Explanation:
Decomposition reaction:
It is the reaction in which one substance is converted into the two or more products.
The decomposition reactions always involved one substance to decompose.
General chemical equation:
AB → A + B
The given chemical equation:
NH₄NO₃(s) → N₂O (g) + H₂O(g)
Ammonium nitrate is decomposed into nitrous oxide and water vapors.
Balanced chemical equation:
NH₄NO₃(s) → N₂O (g) + 2H₂O(g)
when it is rapidly heated it form N₂ and O₂.
2NH₄NO₃ → 2N₂ + O₂ + 4H₂O
By increasing the temperature decomposition is increased and in limited space due to pressure it may cause explosion.
Answer:
The order of solubility is AgBr < Ag₂CO₃ < AgCl
Explanation:
The solubility constant give us the molar solubilty of ionic compounds. In general for a compound AB the ksp will be given by:
Ksp = (A) (B) where A and B are the molar solubilities = s² (for compounds with 1:1 ratio).
It follows then that the higher the value of Ksp the greater solubilty of the compound if we are comparing compounds with the same ionic ratios:
Comparing AgBr: Ksp = 5.4 x 10⁻¹³ with AgCl: Ksp = 1.8 x 10⁻¹⁰, AgCl will be more soluble.
Comparing Ag2CO3: Ksp = 8.0 x 10⁻¹² with AgCl Ksp = AgCl: Ksp = 1.8 x 10⁻¹⁰ we have the complication of the ratio of ions 2:1 in Ag2CO3, so the answer is not obvious. But since we know that
Ag2CO3 ⇄ 2 Ag⁺ + CO₃²₋
Ksp Ag2CO3 = 2s x s = 2 s² = 8.0 x 10-12
s = 4 x 10⁻12 ∴ s= 2 x 10⁻⁶
And for AgCl
AgCl ⇄ Ag⁺ + Cl⁻
Ksp = s² = 1.8 x 10⁻¹⁰ ∴ s = √ 1.8 x 10⁻¹⁰ = 1.3 x 10⁻⁵
Therefore, AgCl is more soluble than Ag₂CO₃
The order of solubility is AgBr < Ag₂CO₃ < AgCl
Answer:
₅₅Cs¹³⁷ → ₅₆Ba¹³⁷ + ⁰₋₁e
Explanation:
Beta radiations:
Beta radiations are result from the beta decay in which electron is ejected. The neutron inside of the nucleus converted into the proton an thus emit the electron which is called β particle.
Properties of beta radiations:
The mass of beta particle is smaller than the alpha particles.
They can travel in air in few meter distance.
These radiations can penetrate into the human skin.
The sheet of aluminium is used to block the beta radiation
₅₅Cs¹³⁷ → ₅₆Ba¹³⁷ + ⁰₋₁e
The beta radiations are emitted in this reaction. The one electron is ejected and neutron is converted into proton.