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3 years ago

Alguém poderia me explicar como balancear uma equação

1 answer:

3 0

<span>Contar los átomos de cada elemento en los reactivos y los productos. Utilizar coeficientes; Colóquelas en frente de los compuestos según sea necesario.</span>

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For each of the following compounds, state whether it is ionic or covalent, and if it is ionic, write the symbols for the ions i

kupik [55]

Answer :

Covalent compound : It is defined as the compound which is formed by the sharing of electrons between the atoms forming a compound.

The covalent compound are usually formed when two non-metals react.

Ionic compound : It is defined as the compound which is formed when electron gets transferred from one atom to another atom.

All the polyatomic ions always form an ionic compound.

Polyatomic ions : It is a charged species that composed of two or more atoms and these charged species are bonded by the covalent bond.

For the given options:

Option A: $KClO_4$

This compound is formed by the combination of potassium, $K^+$ which is a metal and $ClO_4^-$ ion which is a polyatomic ion. Thus, it will form an ionic compound.

Option B: $Mg(C_2H_3O_2)_2$

This compound is formed by the combination of magnesium, $Mg^{2+}$ which is a metal and $C_2H_3O_2^{-}$ ion which is a polyatomic ion. Thus, it will form an ionic compound.

Option C: $H_2S$

Hydrogen and sulfur, both are non-metals and they will form a covalent compound.

Option D: $Ag_2S$

This compound is formed by the combination of silver, $Ag^{+}$ which is a metal and sulfur, $S^{2-}$ which is a non-metal. Thus, it will form an ionic compound.

Option E: $N_2Cl_4$

Nitrogen and chlorine, both are non-metals and they will form a covalent compound.

Option F: $Co(NO_3)_2$

This compound is formed by the combination of cobalt, $Co^{2+}$ which is a metal and $NO_3^{-}$ ion which is a polyatomic ion. Thus, it will form an ionic compound.

6 0

3 years ago

What ions are associated with bases

Setler [38]

Hydroxide ions are what you are looking for. When hydroxide ions are released, the solution becomes more basic

4 0

4 years ago

The total amount of energy before and after a chemical reaction is the same. thus, energy is

Anna35 [415]

The energy is conserved

6 0

4 years ago

Read 2 more answers

If 6.35 g of cu(no3)2 is dissolved in water to make a 0.750 m solution, what is the volume of the solution (in ml)?

miv72 [106K]

First, we need to find out how many moles we have of $Cu ( NO_{3} )_{2}$ if we are given 6.35g.

We need to calculate the molar mass of the molecule:

Cu: 63.546g
N: 14.01g * 2 = 28.02g
O: 15.999g * 6 = 95.994

Add them together to get: 187.56g

So now we need to find the number of moles we are given. This can be done by setting up a multiplication equation and cancelling the units:

$\frac{1mole}{187.56g}* \frac{6.35g}{1}=0.034 mol _{Cu( NO_{3} )_{2} }$

So now that we know the number of moles that we have, we can use the molarity equation to find the volume of the solution. The molarity equation is:

$Molarity= \frac{moles}{Liters}$

So since we are given the molarity in the equation (0.750 M), we can plug in the molarity and moles to find the volume of the solution:

$0.750= \frac{0.034mol}{volume(L)}$

$volume(L)=0.04533L$

So now we know that the volume is 0.04533 Liters; however the question asks for the answer in milliliters. To do this, we must multiply by 1000:

$\frac{0.045L}{1} * \frac{1000mL}{1L}=45.33mL$

So the volume of the solution (<em>in mL</em>) is 45.33 mL.

7 0

3 years ago

What three letters were used to substitute the last 3 letters in Chlorine?

Alenkinab [10]

Answer:

Is it chloride? ide?

Explanation:

6 0

3 years ago