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3 years ago

What is the net ionic equation for Na3PO4 and CoCl2

Chemistry

1 answer:

Delicious77 [7]3 years ago

4 0

2 PO₄³⁻ (aq) + 3 Co²⁺ (aq) → Co₃(PO₄)₂ (s)

Explanation:

molecular equation:

2 Na₃PO₄ + 3 CoCl₂ → Co₃(PO₄)₂ + 6 NaCl

ionic equation:

6 Na⁺ (aq) + 2 PO₄³⁻ (aq) + 3 Co²⁺ (aq) + 6 Cl⁻ (aq) → Co₃(PO₄)₂ (s) + 6 Na⁺ (aq) + 6 Cl⁻ (aq)

we remove the spectator ions to get the net ionic equation:

2 PO₄³⁻ (aq) + 3 Co²⁺ (aq) → Co₃(PO₄)₂ (s)

were:

(aq) - aqueous

(s) - solid

Learn more about:

net ionic equation

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What are the two major types of<br> compounds? How do the bonds differ in<br> each type?

Kaylis [27]

Answer:

1= Ionic compounds

2= Covalent compounds

Explanation:

Ionic bond:

It is the bond which is formed by the transfer of electron from one atom to the atom of another element.

Both bonded atoms have very large electronegativity difference. The atom with large electronegativity value accept the electron from other with smaller value of electronegativity.

For example:

Sodium chloride is ionic compound. The electronegativity of chlorine is 3.16 and for sodium is 0.93. There is large difference is present. That's why electron from sodium is transfer to the chlorine. Sodium becomes positive and chlorine becomes negative ion.

Covalent bond:

It is formed by the sharing of electron pair between bonded atoms.

The atom with larger electronegativity attract the electron pair more towards it self and becomes partial negative while the other atom becomes partial positive.

For example:

In water the electronegativity of oxygen is 3.44 and hydrogen is 2.2. That's why electron pair attracted more towards oxygen, thus oxygen becomes partial negative and hydrogen becomes partial negative.

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4 years ago

What is the pressure exerted by a force of 15.0 N over an area of 0.00372 m^2 ?

aleksandrvk [35]

Explanation:

Pressure = Force/Area

therefore,

P = 15/0.00372

= 4.03 X10^³N/m²

6 0

2 years ago

Some scientists believe that life on Earth may have originated near deep-ocean vents. Balance the following reactions, which are

goldenfox [79]

Answer :

(1) The balanced chemical reaction will be,

$2CH_3SH(l)+CO(g)\rightarrow CH_3CO(SCH_3)(l)+H_2S(g)$

(2) The balanced chemical reaction will be,

$8H_2S(g)+8CO(g)\rightarrow 4CH_3CO_2H(g)+S_8(s)$

Explanation :

Balanced chemical reaction : It is defined as the reaction in which the number of atoms of individual elements present on reactant side must be equal to the product side.

If the amount of atoms of each type on the left and right sides of a reaction differs then to balance the equation by adding coefficient in the front of the elements or molecule or compound in the chemical equation.

The coefficient tell us about that how many molecules or atoms present in the chemical equation.

(1) The unbalanced chemical reaction is,

$CH_3SH(l)+CO(g)\rightarrow CH_3CO(SCH_3)(l)+H_2S(g)$

This reaction is an unbalanced chemical reaction because in this reaction number of hydrogen, sulfur and carbon atoms are not balanced.

In order to balance the chemical equation, the coefficient '2' put before the $CH_3SH$ and we get the balanced chemical equation.

The balanced chemical reaction will be,

$2CH_3SH(l)+CO(g)\rightarrow CH_3CO(SCH_3)(l)+H_2S(g)$

(2) The unbalanced chemical reaction is,

$H_2S(g)+CO(g)\rightarrow CH_3CO_2H(g)+S_8(s)$

This reaction is an unbalanced chemical reaction because in this reaction number of hydrogen, sulfur and carbon atoms are not balanced.

In order to balance the chemical equation, the coefficient '8' put before the $H_2S\text{ and }CO$ and the coefficient '4' put before the $CH_3CO_2H$ we get the balanced chemical equation.

The balanced chemical reaction will be,

$8H_2S(g)+8CO(g)\rightarrow 4CH_3CO_2H(g)+S_8(s)$

5 0

3 years ago

Read 2 more answers

In the determination of the specific heat of a metal, why is it desirable to use the minimum volume of water that will allow imm

Softa [21]

Answer:

Because it will allow a bigger temperature change.

Explanation:

The specific heat of the metal can be calculated by the heat change between it and the water. The total amount of heat must be 0, thus, the heat of the metal (Qm) plus the heat of water (Qw):

Qm + Qw = 0

The heat is the mass multiplied by the specific heat (c) and by the temperature change:

mm*cm*ΔTm + mw*cw*ΔTw = 0

mm*cm*ΔTm = - mw*cw*ΔTw

So, as higher is the value of mw, as low is the value of ΔTw, and if ΔTw is very low, and so the calculations may not be precise.

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3 years ago

Which statement best compares the energy involved in melting with the energy involved in boiling for a given liquid?

Nana76 [90]

Answer:

Energy is added to the particles in each change, but boiling requires more energy than melting because the attractions must be completely overcome.

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3 years ago