2.

Chemistry

1 answer:

Margarita [4]2 years ago

8 0

Answer:

Brainly operates a group of social learning networks for students and educators. Brainly inspires students to share and explore knowledge in a collaborative community and engage in peer-to-peer educational assistance, which is made available on www.brainly.com and any www.brainly.com sub-domains (the “Website”) as well as the Brainly.com mobile application (the “App”) (the “Website” and the “App” are collectively the “Brainly Services”).

Explanation:

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Which structural formula does not represent benzene? a hexagon with nothing drawn inside it a hexagon with a dotted circle drawn

boyakko [2]

Answer:
<span>A hexagon with nothing drawn inside it does not represent Benzene.

Explanation:

Below attached picture contains structures mentioned in given option.

Structure of Option-A is shown in Red Color.
</span>
Structure of Option-B is shown in Blue Color.

Structure of Option-C is shown in Green Color.

Structure of Option-D is shown in Orange Color.

Result:
Except Option-A, all structures represent Benzene. Option-A in fact shows the structure of Cyclohexane.

5 0

3 years ago

Read 2 more answers

In an area in which electricity costs 8 cents/kilowatt-hour, a 5 kW clothes dryer runs for 90 minutes to dry a load of laundry.

Orlov [11]

90 minutes is 1.5 hours.

5 kW * 1.5 hours = 7.5 kWh

8c/kWh * 7.5 kWh = 60 cents

4 0

3 years ago

How many iron atoms are reactants in this equation? 4Fe+ 302

storchak [24]

Answer:

4 atoms of oxygen.

Explanation:

The given equation is :

$4Fe+3O_2\rightarrow 2Fe_2O_3$

Here Fe and O₂ are reactants and Fe₂O₃ is a product. It is a balanced chemical reaction in which the number of atoms on LHS are equal to number of atoms on RHS.

4 atoms of iron react with 3 atoms of oxygen to form iron oxide. Hence, there are 4 atoms of reactants in this equation.

6 0

3 years ago

Which of the following is the correct definition of nuclear energy?

Marianna [84]

Answer:

The answer should be A:) The energy produced from the splitting of atoms.

Explanation:

3 0

4 years ago

How many electrons will each element gain or lose in forming an ion?

Amanda [17]

It depends on the number of valence electrons required to make octet or duplet( in case of H). For example, Nitrogen(atomic number = 7) has electronic configuration(2,5) which means nitrogen has 5 valence electrons and requires 3 more electrons to complete its octet. After gaining 3 electrons from atoms of an element with less electronegativity than N, it forms nitride ion ( $N ^{-3}$ ). Hope this helps.

8 0

3 years ago