How much kilometers is in 6000m

Chemistry

2 answers:

lord [1]3 years ago

3 0

Answer:

about 3 miles i think

Explanation:

djverab [1.8K]3 years ago

3 0

Answer:

Explanation:

divide the length value by 1000

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What is the magnitude of the electrostatic force between a singly charged sodium ion and an adjacent singly charged chlorine ion

Arisa [49]

To know the electrostatic force between two charges or between two ions, you can use the Coulomb's Law. The equation is F = k*q1*q1/r^2, where F is the electrostatic force, q1 and q2 are the charger for Na and Cl, and r is the distance between the centers of both atoms. In literature, the distance is 0.5 nm or 0.5 x 10^-9 meters. The charge for Na+ and Cl- is the same magnitude but different in sign. Since Na+ is a cation, its charge is +1.603x10^-19 C (the charge of an electron). For Cl- being an anion, its charge is -1.603x10^-19 C. The constant k is an empirical value equal to 9x10^9. Using the formula:

F = (9x10^9)(+1.603x10^-19)(-1.603x10^-19)/(0.5 x 10^-9)^2
F = -9.25 x 10^-10 Newtons

The negative denotes that the net force is more towards the Cl- ion.

5 0

3 years ago

How far does light travel in 3.0 days

MArishka [77]

Answer:

$d=7.77\times 10^{13}\ m$

Explanation:

We know that the speed of light is equal to $3\times 10^8\ m/s$

We need to find how far the light travel in 3 days.

Speed of an object is equal to distance covered divided by time taken.

Also, 1 day = 86400 s

3 days = 259200 s

So,

$d=vt$

$d=3\times 10^8\times 259200\\\\d=7.77\times 10^{13}\ m$

So, the light will travel $7.77\times 10^{13}\ m$ in 3 days.

7 0

3 years ago

Treatment of ethyl acetoacetate with NaOEt (2 equiv) and BrCH2CH2Br forms compound X. This reaction is the first step in the syn

valkas [14]

Answer:

See explanation below

Explanation:

In this reaction we have the ethyl acetoacetate which is reacting with 2 eq of sodium etoxide. The sodium etoxide is a base and it usually behaves as a nucleophyle of many reactions. Therefore, it will atract all the acidics protons in a molecule.

In the case of the ethyl acetoacetate, the protons that are in the methylene group (CH3 - CO - CH2 - COOCH2CH3) are the more acidic protons, therefore the etoxide will substract these protons instead of the protons of the methyl groups. This is because those hydrogens (in the methylene group) are between two carbonile groups, which make them more available and acidic for any reaction. As we have 2 equivalents of etoxide, means that it will substract both of the hydrogen atoms there, and then, reacts with the Br - CH2CH2 - Br and form a product of an aldolic condensation.

The mechanism of this reaction to reach X is shown in the attached picture.