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adelina 88 [10]
3 years ago
5

Please use the E/Z notation when specifying stereochemistry remembering to use parentheses and a dash. Reminder - the double bon

d takes precedence over alkyl groups when numbering the parent. (E)-5-bromo-5-ethylhept-2-ene when combined with NaOCH2CH3.

Chemistry
1 answer:
melamori03 [73]3 years ago
4 0

Answer:

(E)-5-ethylhepta-2,4-diene

Explanation:

The  (E)-5-bromo-5-ethylhept-2-ene will undergo an E2 reaction. The ethoxide (⁻OCH₂CH₃) will deprotonate at the allylic position so that a conjugated diene results, which is more stable than a non-conjugated diene.

The stereochemistry in the name of the final product is indicated for only one double bond since the other has two identical groups on it.

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The reaction of Pb+4 and O-2 produces the compound of
vovikov84 [41]

Answer:

Pb₂O₄

                               

Explanation:

The given species are:

        Pb⁴⁺               O²⁻  

Now, to solve this problem, we use the combining powers which corresponds to the number of electrons usually lost or gained or shared by atoms during the course of a chemical combination.

                                          Pb⁴⁺               O²⁻  

Combining power               4                    2

Exchange of valencies        2                    4

Now the molecular formula is  Pb₂O₄

                               

4 0
3 years ago
If you pump air into cycle tyre a slight warming effect is noticed at valve stem why
SSSSS [86.1K]
Probably the kinetic energy of rubbing the pump against the valve, combined with the increase in gas pressure in the tire itself.
8 0
3 years ago
Isomers have the same physical properties because the chemical formulas are identical. True False
Luda [366]
The statement is False.
The molecular (chemical) formulas are same in case of isomers but the arrangement of atoms is different in them. The physical properties are determined by the arrangement of atoms within the molecule.

Since the arrangement of atoms is different in case of isomers, the Physical Properties will also be different.
5 0
3 years ago
How many phosphorous atoms are found in three molecules of magnesium phosphate, 3Mg3(PO4)2?
aleksandr82 [10.1K]

Answer: Option (d) is the correct answer.

Explanation:

Since the given formula is 3Mg_{3}(PO_{4})_{2}. According to cross method formula, magnesium has +2 charge so, PO_{4} is multiplied by 2.

Thus, 1 molecule of magnesium phosphate will contain 2 atoms of phosphorus.

Therefore, three molecules of magnesium phosphate contains following number of atoms.

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Hence, we can conclude that there are 6 atoms of phosphorus in three molecules of magnesium phosphate, 3Mg_{3}(PO_{4})_{2}.

4 0
3 years ago
I need help with this anyone?
valkas [14]
Just look it up on goog^le or a chart
5 0
3 years ago
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