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andrey2020 [161]
2 years ago
6

DATE PAGE No. 25. calculate the temperature at which air possesses a density equal to that of hydrogen at Dºc. Density of a'r at

NTP . com, Density (0) = 14.4 ​
Chemistry
1 answer:
Gemiola [76]2 years ago
7 0

Answer: what is your issue

Explanation:

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What is 6.9 x 10^-3 in standard form?
Maslowich

Answer:

0.0069

Explanation:

When converting between scientific notation try to remember that moving the decimal place to the left is positve and to the right is negative

Since you are changing from scientific to standard you will need to move to the left from the decimal point, making your answer 0.0069

4 0
3 years ago
Construct a three-step synthesis of 1,2-epoxycyclopentane from cyclopentanol by dragging the appropriate formulas into the bins.
zubka84 [21]

Answer:

(1) Bromination, (2) E2 elimination and (3) epoxidation

Explanation:

  • In the first step, -OH group in cyclopentanol is replaced by more facile leaving group Br by treating cyclopentanol with PBr_{3}
  • In the second step, E2 elimination in presence of strong base e.g. NaOEt/EtOH produce cyclopentene
  • In the third step, treatment of cyclopentene with mCPBA produces 1,2-epoxycyclopentane
  • Full reaction scheme has been shown below

3 0
3 years ago
30PTS EASY QUESTION
irga5000 [103]
Thermal, electrical, chemical, nuclear, and electromagnetic energy. (just gave you more than two just incase)
4 0
3 years ago
Read 2 more answers
How many grams of oxygen are required to burn 3.01 x 10^23 propane molecules?
Tema [17]
That’s some hard stuff what grade are you in im going to find the answer really fast hold on
3 0
3 years ago
Cuántos gramos de hidróxido de sodio (NaOH) se debe de agregar a un litro de agua para obtener una disolución al 25% en masa
Tamiku [17]

Answer:

= 250 gramos

Explanation:

No ha preguntado sobre peso / peso o peso / volumen.

Para w / v:

Simplemente tome el 25% de 1000 y luego agréguelo en 1L de agua

La masa de NaOH necesaria es de 250 g.

Para w / w:

250 gramos de NaOH y 750 g de agua, hará que la solución sea 1L.

5 0
3 years ago
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