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3 years ago

Write balanced complete ionic equation for the reaction cas(aq)+cucl2(aq)→cus(s)+cacl2(aq)

Chemistry

2 answers:

Hunter-Best [27]3 years ago

4 0

It is already balanced. cas(aq)+cucl2(aq)â†’cus(s)+cacl2(aq)

Ksivusya [100]3 years ago

4 0

Answer: The given equation is already balanced.

Explanation:

A balanced chemical reaction is defined as the reaction in which total mass on the reactant side is equal to the total mass on the product side.

These equations follow Law of Conservation of Mass. The mass remains conserved in a chemical reaction.

For the given chemical equation:

$CaS(aq.)+CuCl_2(aq.)\rightarrow CuS(s)+CaCl_2(aq.)$

On the reactant side: $[(40+32)+(63.5+(2\times 35.5))]=206.5g/mol$

On product side: $[(63.5+32)+(40+(35.5\times 2))]=206.5g/mol$

As, the mass on reactant side is equal to the mass on product side. Hence, the equation is a balanced chemical equation.

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timama [110]

Answer:

1.element

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2 years ago

In an isolated system, mass can neither be created or destroyed. ube FALSE TRUE

Marina86 [1]

Answer:

True

Explanation:

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Hope it helps

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3 years ago

Can someone help me

noname [10]

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3 years ago

How much space does a 246g box take up. Its density is listed at 3.2 g/cm3.

CaHeK987 [17]

Answer:

76.875 cm3

<h2>Explanation:</h2>

Since: Density = $\frac{Mass}{volume\\}$

Then: Volume = $\frac{Mass}{Density\\}$

The mass of the box = 246g

and the density = 3.2 g/cm3

Then: The volume = $\frac{246}{3.2}$

= 76.875 cm3

4 0

3 years ago

In which of the following compounds does the carbonyl stretch in the IR spectrum occur at the lowest wavenumber?

klio [65]

Answer:

a. Cyclohexanone

Explanation:

The principle of IR technique is based on the vibration of the bonds by using the energy that is in this region of the electromagnetic spectrum. For each bond, there is a specific energy that generates a specific vibration. In this case, you want to study the vibration that is given in the carbonyl group C=O. Which is located around 1700 cm-1.

Now, we must remember that the lower the wavenumber we will have less energy. So, what we should look for in these molecules, is a carbonyl group in which less energy is needed to vibrate since we look for the molecule with a smaller wavenumber.

If we look at the structure of all the molecules we will find that in the last three we have heteroatoms (atoms different to carbon I hydrogen) on the right side of the carbonyl group. These atoms allow the production of resonance structures which makes the molecule more stable. If the molecule is more stable we will need more energy to make it vibrate and therefore greater wavenumbers.

The molecule that fulfills this condition is the cyclohexanone.

See figure 1

I hope it helps!

4 0

3 years ago