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quester [9]
2 years ago
7

Name the given compound according to the IUPAC nomenclature

Chemistry
2 answers:
Ostrovityanka [42]2 years ago
4 0

Answer: there are two ways to write the name of the compound and the two ways are generally acceptable

4—Ethly—2,5—hept—diene

Or

4—Ethlyhept—2,5—diene

Explanation:

11111nata11111 [884]2 years ago
4 0

Answer:

4-ethyl-hept-2,5-diene

Explanation:

Hello,

In this case, by following the IUPAC rules, we first must number the chain starting by the first left-handed CH₃ and finishing at the last CH₃. In such a way, the radical C₂H₅ which is at the fourth carbon is an ethyl radical as it has two carbons. Moreover, we notice the presence of two double bonds at the second and fifth carbons and a main chain having seven carbons in total, for that reason, the name turns out:

4-ethyl-hept-2,5-diene

Best regards.

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Help please really need help
zheka24 [161]

Answer:

2.14 × 10⁻³ molecules/RSP

3.31 × 10⁻³ molecules/ESP

Explanation:

Step 1: Calculate the number of moles of Acetaminophen per Regular Strength Pill (RSP)

A Regular Strength Pill has 1.29 × 10²¹ molecules of Acetaminophen per pill. To convert molecules to moles we will use Avogadro's number: there are 6.02 × 10²³ molecules in  1 mole of molecules.

1.29 × 10²¹ molecules/RSP × 1 mol/6.02 × 10²³ molecules = 2.14 × 10⁻³ molecules/RSP

Step 2: Calculate the number of moles of Acetaminophen per Extra Strength Pill (ESP)

An Extra Strength Pill has 1.99 × 10²¹ molecules of Acetaminophen per pill. To convert molecules to moles we will use Avogadro's number: there are 6.02 × 10²³ molecules in  1 mole of molecules.

1.99 × 10²¹ molecules/ESP × 1 mol/6.02 × 10²³ molecules = 3.31 × 10⁻³ molecules/ESP

5 0
2 years ago
All of the following statements concerning voltaic cells are true EXCEPT
MissTica

Answer:

oxidation occurs at the cathode.

Explanation:

In a voltaic cell electrons move from anode to cathode. At the anode, species give up electrons. This is an oxidation reaction depicted by the oxidation half equation. At the cathode, species accept electrons and become reduced. This is depicted by the reduction half equation. In summary; in a Voltaic cell, oxidation occurs at the anode while reduction occurs at the cathode.

3 0
3 years ago
What type of energy is carried by electrical charges as they move in a circuit?
Usimov [2.4K]
B. Electrical energy
3 0
3 years ago
Which process is an example of a chemical change? drying clothes in the dryer heating a cup of tea chopping a tree activating a
coldgirl [10]
Answer:

Activating a glow stick is the example of a chemical change, as snapping one will cause a chemical reaction, causing the glow. All of the other options are physical changes because nothing new is formed. Hope this helps!
8 0
3 years ago
A system fitted with a piston expands when it absorbs 53.1 ) of heat from the surroundings. The piston is working against a pres
Hoochie [10]

Answer:

d. 60.8 L

Explanation:

Step 1: Given data

  • Heat absorbed (Q): 53.1 J
  • External pressure (P): 0.677 atm
  • Final volume (V2): 63.2 L
  • Change in the internal energy (ΔU): -108.3 J

Step 2: Calculate the work (W) done by the system

We will use the following expression.

ΔU = Q + W

W = ΔU - Q

W = -108.3 J - 53.1 J = -161.4 J

Step 3: Convert W to atm.L

We will use the conversion factor 1 atm.L = 101.325 J.

-161.4 J ×  1 atm.L/101.325 J = -1.593 atm.L

Step 4: Calculate the initial volume

First, we will use the following expression.

W = - P × ΔV

ΔV = - W / P

ΔV = - 1.593 atm.L / 0.677 atm = 2.35 L

The initial volume is:

V2 = V1 + ΔV

V1 = V2 - ΔV

V1 = 63.2 L - 2.35 L = 60.8 L

7 0
2 years ago
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