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4 years ago

Balance the reaction which forms ions. Choose "blank" if no coefficient other than 1 is needed.

2 answers:

7 0

when one mole of barium nitrate dissociates into ions it forms 1 mole of Ba2+ and 2 moles of NO3-. The balanced equation is ,

$Ba(No_{3} )_{2}$ → $1Ba^{2+} +2NO_{3} ^{-1}$

AVprozaik [17]4 years ago

5 0

<u>Answer:</u> The chemical equation is given below.

<u>Explanation:</u>

We are given a equation that represents ionization of barium nitrate salt.

Ionization reaction is defined as the reaction in which a salt breaks into its respective ions. The chemical equation for the ionization of barium nitrate is given as:

$Ba(NO_3)_2\rightarrow Ba^{+2}+2NO_3^-$

By Stoichiometry of the reaction:

1 mole of barium nitrate ionizes to produce 1 mole of barium ions and 2 moles of nitrate ions.

Hence, the chemical equation is given above.

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If 1.320 moles of CH4 reacts completely with oxygen, how many grams of H2O can be formed

laiz [17]

Answer:

47.5 g of water can be formed

Explanation:

This is the reaction:

CH₄ + 2O₂ → CO₂ + 2H₂O

Methane combustion.

In this process 1 mol of methane react with 2 moles of oxygen to produce 2 moles of water and 1 mol of carbon dioxide.

As ratio is 1:2, I will produce the double of moles of water, with the moles of methane I have.

1.320 mol .2 = 2.64 moles

Now, we can convert the moles to mass (mol . molar mass)

2.64 mol . 18g/mol = 47.5 g

7 0

3 years ago

Read 2 more answers

Determine which of the following statement is correct when the equilibrium constant K for a certain reaction is 10 at 298 K and

aev [14]

Answer:

4. The reaction is spontaneous at any temperatures if the standard entropy of reaction is positive.

Explanation:

Equilibrium constant decreases on increasing the temperature . So the reaction appears to be exothermic . In other words

ΔH is negative .

Δ G = ΔH - TΔS

If ΔS is positive , second term is negative . ΔH is negative so the RHS of the equation is negative at all temperatures . Hence Δ G of the reaction is negative . So reaction is spontaneous at any temperature.

3 0

3 years ago

In fossil comparisons, it helps to know about similar:

pogonyaev

Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today

6 0

4 years ago

Suppose you wish to separate a mixture of fine particles of gold and sand, neither of which is soluble in water. if you add liqu

Greeley [361]

The mixture can be separated as shown in the flow chart

4 0

3 years ago

At a given temperature, the equilibrium constant for the formation of HI from H2 and I2 was found to be 29.9. Calculate the equi

evablogger [386]

Answer:

The correct answer is: K'= 0.033.

Explanation:

The formation of HI from H₂ and I₂ is given by:

H₂ + I₂ → 2 HI K= 29.9

The decomposition of HI is the reverse reaction of the formation of HI:

2 HI → H₂ + I₂ K'

Thus, K' is the equilibrium constant for the reverse reaction of formation of HI. It is calculated as the reciprocal of the equilibrium constant of the forward reaction (K):

K' = 1/K = 1/(29.9)= 0.033

Therefore, the equilibrium constant for the decomposition of HI is K'= 0.033

5 0

4 years ago