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3 years ago

Enter a balanced equation for the reaction of Na2S and CdSO4.

2 answers:

6 0

This type of a reaction is a double displacement reaction. where the reactants displace each other. the cations and the anions the reactant compounds replace each other or in other words switch places. the anion of one compound will bond with the cation of the other compound and vice versa.

the equation for the above is
Na₂S + CdSO₄ ---> CdS + Na₂SO₄
the numbers of atoms on both sides are balanced now

Sliva [168]3 years ago

3 0

Answer: $Na_2S+CdSO_4\rightarrow Cd_2S+Na_2SO_4$

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

Double displacement reaction is one in which exchange of ions take place.

The balanced chemical reaction will be:

$Na_2S+CdSO_4\rightarrow Cd_2S+Na_2SO_4$

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Multiple choice-- please help!

kvasek [131]

The rate law for the reaction : r=k.[A]²

<h3>Further explanation</h3>

Given

Reaction

A ⟶ B + C

Required

The rate law

Solution

The rate law is a chemical equation that shows the relationship between reaction rate and the concentration / pressure of the reactants

For the second-order reaction it can be:

1. the square of the concentration of one reactant.

$\tt r=k[A]^2$

2. the product of the concentrations of two reactants.

$\tt r=k[A][B]$

And the reaction should be(for second order) :

2A ⟶ B + C

Thus, for reaction above (reactant consumption rate) :

$\tt r=-\dfrac{\Delta A}{2\Delta t}=k[A]^2$

6 0

2 years ago

A mixture contains 95% sulfutic acid how many grams of mixture are needed to get 100g H2so4

I am Lyosha [343]

Answer:

Explanation:

it's worth pointing out that the terms solute and solvent do not really apply here because sulfuric acid is miscible in water, meaning that the two liquids can be mixed in all proportions to form a homogeneous mixture, i.e. a solution.

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3 years ago

Which polyatomic ion forms A neutral compound when combined with group a1 monotonic ion in a 1:1

kolezko [41]

Answer:

"Nitrate" is a polyatomic ion forms A neutral compound when combined with group a1 monotonic ion in a 1:1

Explanation:

Nitrate is a polyatomic ion with the molecular formula NO⁻ ₃. Organic complexes that comprise the nitrate ester as a functional group are also named nitrates. Nitrates are shared apparatuses of fertilizers and explosives. Almost all nitrate salts are soluble in water. Usually nitrates that enter the body by eating or drinking leave the body without harm. These nitrites in the blood cause changes in hemoglobin, or the molecules that help move oxygen in the body. Nitrates can make it so that less oxygen is available for the body to function properly.

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2 years ago

Most geologists think that the movement of Earth's plates is caused by

butalik [34]

Answer: C. Convection currents in the asthenosphere.

Explanation: Most geologists think that the movement of Earth's plates is caused by convection currents in the asthenosphere.

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7 0

2 years ago

Complete this equation for the dissociation of na2co3(aq). omit water from the equation because it is understood to be present.

Savatey [412]

Net overall dissociation:
Na2CO3 ---> 2Na(-) + CO3(2-)

*The ion charge is in parenthesis