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SashulF [63]
3 years ago
9

Which of the following pairs of elements is most likely to form an ionic bond? Sulfur and Oxygen Carbon and Chlorine Phosphorous

and Bromine Aluminum and Nitrogen
Chemistry
1 answer:
djverab [1.8K]3 years ago
8 0

“<u>Aluminum</u>” and “<u>Nitrogen</u>” form an ionic bond.

Option: D

<u>Explanation</u>:

Aluminum and nitrogen are most likely to form an “ionic bond” among given pairs of elements in form of aluminum nitride. AlN is partially covalent and also show ionic characteristics as N needs 3 electrons to fill outer shell and Al has 3 electrons in valence shell. Hence \mathrm{Al}^{+3} is cation and \mathrm{N}^{-3} is anion and have “electrostatic force” of attraction between these oppositely charged ions. Here ionic behavior is seen as nitrogen is more “electronegative” hence attract the shared pair of electrons which is earlier responsible for partial covalent bond formation.

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PLEASE HELP!! How could using either more or less of a chemical in a scientific experiment cause a change in results?
charle [14.2K]
The chemical could have more or less of a reaction to the other chemicals in the experiment
4 0
3 years ago
Match the vocabulary word with its definition. Match the items in the left column to the items in the right column. 1. The actua
tekilochka [14]

Answer:

1. The actual amount of product that is produced from a given amount of reactant or reactants.  → actual yield  

2. A law which states that in ordinary chemical reactions, the sum of the masses of the reactants always equals the sum of the masses of the products.    → Conservation of Mass

3. The reactant that is not used up in a reaction that goes to completion

→ excess reactant  

4. The reactant that limits how much product is produced in a reaction that goes to completion. It is used up in the reaction. → limiting reactant  

5. The ratio of the actual yield to theoretical yield multiplied times 100.

→ percent yield

6. The maximum calculated amount of product produced from a given reactant in a reaction that goes to completion. → theoretical yield

7. The study of the quantitative relationships between reactants and products in a chemical reaction. → stoichiometry  

Explanation:

1. The actual amount of product that is produced from a given amount of reactant or reactants.  → actual yield  

  • The actual yield is the actual amount of product that is produced in a chemical reaction and it can be determined experimentally.

2. A law which states that in ordinary chemical reactions, the sum of the masses of the reactants always equals the sum of the masses of the products.    → Conservation of Mass

  • The law of conservation of mass states that mass in an isolated closed system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.

3. The reactant that is not used up in a reaction that goes to completion

→ excess reactant  

  • In any chemical reaction between two or more reactants, the excess reactant is the substance that is leftover when the chemical reaction is ended. The amount of product formed is not limited by this reagent.

4. The reactant that limits how much product is produced in a reaction that goes to completion. It is used up in the reaction. → limiting reactant  

  • In any chemical reaction between two or more reactants, the limiting reactant is the substance that is consumed completely when the chemical reaction is ended. The amount of product formed is limited by this reagent, since the reaction cannot continue without it.

5. The ratio of the actual yield to theoretical yield multiplied times 100.

→ percent yield

  • percent yield  = (actual yield / theoretical yield) *100

6. The maximum calculated amount of product produced from a given

reactant in a reaction that goes to completion.

→ theoretical yield

  • theoretical yield  is defined as the amount of the obtained desired product.

7. The study of the quantitative relationships between reactants and products in a chemical reaction.

→ Stoichiometry

  • Stoichiometry is a branch of chemistry that deals with relationships between reactants and/or products in a reaction to determine desired quantitative data.

3 0
3 years ago
Ammonia gas and oxygen gas react to form water vapor and nitrogen monoxide gas. What volume of water would be produced by this r
NikAS [45]

Answer:

Water volume produced is 7.3 mL

Explanation:

This the reaction:

4NH₃ (g) + 5O₂ (g) →  4NO (g) + 6H₂O (g)

We have to work with density, to solve this question

Density of ammonia = Ammonia mass / Ammonia volume

0,00073 g/mL = Ammonia mass / 6300 mL

(Notice, we had to convert 6.3L to mL)

0.00073 g/mL . 6300 mL = Ammonia mass → 4.599 g

Mass / Molar mass = Mol

4.599 g / 17g/m = 0.270 mole

Ratio is 4:6

4 mole of ammonia produce 6 mole of water

0.270 mole produce (0.270  .6)/4 = 0.405 mol

Molar mass . mole = mass

18 g/m . 0.405 m = 7.30 g

Water density = 1 g/mL

Water density = Water mass / Water Volume

1g/mL = 7.30 g / Water volume

Water volume = 7.3 mL

5 0
3 years ago
A student isolated 25 g of a compound following a procedure that would theoratically yield 81 g. Wht was his percentt yield?
Sati [7]

<u>Answer:</u> The percent yield of the compound is 30.86 %.

<u>Explanation:</u>

To calculate the percentage yield of a compound, we use the equation:

\%\text{ yield}=\frac{\text{Experimental yield}}{\text{Theoretical yield}}\times 100

Experimental yield of compound = 25 g

Theoretical yield of compound = 81 g

Putting values in above equation, we get:

\%\text{ yield of compound}=\frac{25g}{81g}\times 100\\\\\% \text{yield of compound}=30.86\%

Hence, the percent yield of the compound is 30.86 %.

3 0
4 years ago
Which of the statements below about buoyancy is true?
Fynjy0 [20]
Buoyancy is a force that acts on objects that are placed in a fluid is the correct answer
Let me know if I agit it!
3 0
4 years ago
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