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horsena [70]
3 years ago
6

Name the carboxylic acid used to make this compound:

Chemistry
1 answer:
DiKsa [7]3 years ago
5 0

Answer:

propanoic acid is used because of the number of carbon atoms before the functional group

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A certain electromagnetic wave has a wavelength of 6.25 x 10-7m. What is the
olasank [31]

Answer: 4.80 * 10¹⁴s⁻¹

Explanation:

Speed = Frequency * Wavelength

So:

Frequency = Speed/ Wavelength

Speed of light = 3 * 10⁸ m/s

Frequency = (3 * 10⁸ m/s) / (6.25 x 10⁻⁷m)

= 4.80* 10¹⁴hz

= 4.80 * 10¹⁴s⁻¹

8 0
3 years ago
How are waves reflected, absorbed, and transmitted through various materials<br>​
EastWind [94]

Answer:

Electromagnetic Radiation

Explanation:

When light shines on an object, it is reflected, absorbed, or transmitted through the object, depending on the object's material and the frequency (color) of the light. However, because light can travel through space, it cannot be a matter wave, like sound or water waves.

7 0
3 years ago
1. A dining hall had a total of 25 tables-some long rectangular tables and some round
TEA [102]

x = 20 long tables

y = 5 round table

Explanation:

We have the following system of equations:

x + y = 25

8x + 6y = 190

From the first equation we have:

x = 25 - y

And we replace x in the second equation:

8(25 - y) + 6y = 190

200 - 8y + 6y = 190

200 - 2y = 190

200 - 190 = 2y

10 = 2y

y = 5

Now we insert the value of y in the next equation:

x = 25 - y

x = 25 - 5

x = 20

Learn more about:

system of equations

brainly.com/question/1748197

brainly.com/question/1658819

#learnwithBrainly

7 0
4 years ago
Someone please help? I've had a go at this myself (see picture of working attached) but not sure where to go from there?
DiKsa [7]

Answer:

75 ml of 0.1M  base neutralizes 25 ml of 0.1M acid, which means the acid has 0.3 moles/L of H ion

but that means each molecule of the acid has 3 times as many H ions aH ions in a molecule of NaOH

which means the formula for the acid must be H3A and

the value of x in

HxA is 3

Explanation:

75ml of a solutipn of 0.1moL  l-1 NaOH neutralises 25ml of a solution of an acid. The formula of the acid is HxA and the concentration of the acid is 0.1mol l-1. What is the value of x?​

the concentration of both the and the base are the same at 0.1M

the base...NaOH has 0.1 moles/L of OH ion

75 ml of 0.1M  base neutralizes 25 ml of 0.1M acid, which means the acid has 0.3 moles/L of H ion

but that means each molecule of the acid has 3 times as many H ions aH ions in a molecule of NaOH

which means the formula for the acid must be H3A and the value of x in

HxA is 3

6 0
3 years ago
How much of the sulfur burnt is normally oxidized to hexavalent state?
jeyben [28]

I feel that it is D but I am not 100% sure sadly.

7 0
3 years ago
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