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katrin [286]
3 years ago
13

Identify the spectator ions in this reaction. Check all that apply.

Chemistry
2 answers:
prohojiy [21]3 years ago
5 0

Answer:

Na^+\text{ and }CO_3^-

Explanation:

Complete ionic equation : In complete ionic equation, all the substance that are strong electrolyte and present in an aqueous are represented in the form of ions.

Net ionic equation : In the net ionic equations, we are not include the spectator ions in the equations.

<u>Only the species which are present in aqueous state dissociate.</u>

Spectator ions : The ions present on reactant and product side which do not participate in a reactions. The same ions present on both the sides.

The complete ionic equation in separated aqueous solution will be,

2H^+_{(aq)}+CO_3^-_{(aq)}+2Na^+_{(aq)}+2OH^-_{(aq)}\rightarrow 2H_2O_{(l)}+CO_3^-_{(aq)}+2Na^+_{(aq)}

In this equation the species present are, Na^+\text{ and }CO_3^- are the spectator ions.

Hence, the net ionic equation contains specie is  

2H^+_{(aq)}+2OH^-_{(aq)}\rightarrow 2H_2O_{(l)}

fiasKO [112]3 years ago
3 0

The two correct answers are:


<h2>CO32– </h2><h2>Na+ </h2><h2 />

I hope you get the day you <em>deserve</em> :)

<h2>❣</h2>

⭐⭐⭐⭐⭐

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A decentralized system of crime laboratories currently exists in the United States under the auspices of various governmental ag
Vesna [10]

Answer:

Federal, State, Municipal and County

Explanation:

A decentralized system of crime laboratories currently exists in the United States under the auspices of various governmental agencies at the federal, state, municipal and county levels of government.

8 0
3 years ago
Please help me on this I’ll give 30 points
Rufina [12.5K]

Answer:

                     1. 10.66 moles of Al

                     2.  2.5 moles of Al₂O₃

                     3. 143.87 g of SO₂

Explanation:

                    The balance chemical equation is as follow,

                                      4 Al + 3 O₂ → 2 Al₂O₃

<h3>1.</h3>

According to balance chemical equation,

                       3 moles of O₂ required  =  4 moles of Al

So,

                     8 moles of O₂ will require  =  X moles of Al

Solving for X,

                      X =  8 mol × 4 mol / 3 mol

                      X =  10.66 moles of Al

<h3>2.</h3>

According to balance chemical equation,

                       4 moles of Al produced  =  2 moles of Al₂O₃

So,

                     5 moles of Al will produce  =  X moles of Al₂O₃

Solving for X,

                      X =  5 mol × 2 mol / 4 mol

                      X =  2.5 moles of Al₂O₃

<h3>3.</h3>

The balance chemical equation for the oxidation of carbon disulfide is as follow;

                                CS₂ + 3 O₂ → CO₂ + 2 SO₂

Step 1: <u>Calculate Moles of CS₂ as;</u>

                  Moles  =  Mass / M.Mass

                  Moles  =  85.5 g / 76.14 g/mol

                  Moles  =  1.12 moles of CS₂

Step 2: <u>Find out moles of SO₂ as;</u>

According to balance chemical equation,

                       1 mole of CS₂ produced  =  2 moles of SO₂

So,

                     1.12 moles of CS₂ will produce  =  X moles of SO₂

Solving for X,

                      X =  1.12 mol × 2 mol / 1 mol

                      X =  2.24 moles of SO₂

Step 3: <u>Calculate Mass of SO₂ as;</u>

                  Mass  =  Moles × M.Mass

                  Mass  =  2.24 mol × 64.06 g/mol

                  Mass  =  143.87 g of SO₂

4 0
3 years ago
How many atoms are in 6.3 moles of lead
densk [106]

Answer:

3.79 x 10²⁴atoms

Explanation:

Given parameters:

Number moles of lead  = 6.3moles

Unknown:

Number of atoms  = ?

Solution:

To solve this problem,

              1 mole of a substance contains  6.02 x 10²³ atoms

            6.3 mole of Pb  will contain 6.3  x 6.02 x 10²³ = 3.79 x 10²⁴atoms

4 0
3 years ago
How is atomic number and mass related to protons, neutrons, &amp; electrons?
artcher [175]
The atomic number is the numbers of protons

6 0
3 years ago
Read 2 more answers
What is the total number of moles present in a 526.0-gram sample of NaNCO3(s)?
dedylja [7]

Answer:

5.42 mol

Explanation:

To find moles, divide the given mass by the compounds molar mass. To find the molar mass of the compound, add of the masses of each individual component:

Molar mass of NaNCO3 = Na + N + C + (O x 3)

Molar mass of NaNCO3 = 23 + 14 + 12 + (16 x 3)

Molar mass of NaNCO3 = 97 g/mol

Moles = mass / molar mass

Moles = 526 g / 97 g/mol

Moles = 5.42 mol

3 0
3 years ago
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