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Ymorist [56]
3 years ago
6

Convert the given quantities. Give your answer with the appropriate number of significant figures.

Chemistry
1 answer:
olga nikolaevna [1]3 years ago
3 0

Answer:

6 x 10^-3 kg

6 x 10^-2 cm^3

10 °C

4.3 x 10^-2 m

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FeCl2 Express your answers as ions separated by a comma.
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In this item, it is assume that we are to express the dissociation of the formula unit given to be FeCl₂ into its ionic components. 

As seen in the chemical formula, the unit is composed of iron (Fe) and chlorine (Cl). The dissociation is written as follows;

     FeCl₂ --> Fe²⁺ + Cl⁻

This equation is balanced by multiplying the appropriate component with a number that would equate the number of atoms in both sides of the equation.

 <em>    FeCl₂ --> Fe²⁺ + 2Cl⁻</em>
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Which of the following types of equations will include spectator ions
krek1111 [17]

Answer:- B) Full ionic equation

Explanations:- A molecular equation does not have ions. It is the non charge form of the elements of compounds. When we write the full or total ionic equation for the molecular equation then ions are written for the aqueous species. The ions present on both sides(reactant and product sides) in a full ionic equation are known as spectator ions or common ions. These ions are canceled to get the net ionic equation. For example, reaction of aqueous solution of silver nitrate with aqueous solution of barium chloride to form aqueous solution of barium nitrate and a precipitate of silver chloride.

Balanced molecular equation:-

BaCl_2(aq)+2AgNO_3(aq)\rightarrow Ba(NO_3)_2(aq)+2AgCl(s)

Full ionic equation:-

Ba^+^2(aq)+2Cl^-(aq)+2Ag^+(aq)+2NO_3^-(aq)\rightarrow Ba^+^2(aq)+2NO_3^-(aq)+2AgCl(s)

If we look at the above full ionic equation then barium ion and nitrate ions are the spectator ions are they are present on both sides.

So, while writing the net ionic equation, these spectator ions are canceled.

Net ionic equation:-

2Cl^-(aq)+2Ag^+(aq)\rightarrow2AgCl(s)

So, it is also clear from the above example that it's the full ionic equation that include spectator ions.

6 0
3 years ago
Read 2 more answers
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