Answer:
4,1,4
Explanation:
Balancing a synthesis equation
Meteorologist study weather.so i would say the answer is meteorologist.
The answer is:
C) Sound is a mechanical wave and needs a medium to travel through while light is an electromagnetic wave.
Answer:
A. H₃O⁺ + CN⁻ → H₂O + HCN
B. OH⁻ + NH₄⁺ → NH₃ + H₂O
C. CN⁻ + NH₄⁺ → HCN + NH₃
D. HSO₄⁻ + CH₃COO⁻ → SO₄²⁻ + CH₃COOH
E. ClO⁻ + NH₃ → NO REACTION
Explanation:
Part A.
Sodium cyanide consist of Na⁺ and CN⁻ ions. CN⁻ is a conjugate base and accept H⁺ ion from nitric acid to form HCN (hydrogen cyanide).
Part B.
Ammonium chloride consist of NH₄⁺ and Cl⁻ ions. Sodium hydroxide is a strong base dissociate completely in solution convert into ammonium hydroxide and sodium chloride.
Part C.
Sodium cyanide consist of counter ion Na⁺ . CN⁻ combined with ammonium bromide to form ammonium cyanide and sodium bromide.
Part D.
Potassium hydrohen sulphate consist of potassium counter and hydrogen sulphate ion. Hydrogen sulphate combined with acetate ion to form acetic acid and sulphate ion.
Part E.
There have no reaction because hypochlorite and ammonia both are bases.
Ionic bond
Explanation:
Ca - Cl₂ is an ionic bond because it involves a true metal and a non-metal.
An ionic bond is an inter-atomic bond between two chemical species.
- This bond forms between two atom with a large electronegative difference.
- Often times, this corresponds to a metal and a non-metal.
- The metal is the less electronegative specie and the non-metal is more electronegative
- The metal such as Ca loses two electrons to become positively charge ion.
- The non-metal gains the electrons. Here two atoms of Cl are turned to ions.
- Electrostatic attraction between the metal and non-metal forms the ionic bonding.
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