All categories

3 years ago

PLEASE HELP!!

Chemistry

1 answer:

Elis [28]3 years ago

3 0

The answer should be 502

You might be interested in

You live 6 kilometers from your school. How many meters do you live from school?

Phantasy [73]

1000 m = 1 km
so if you have 6 km you have 1000×6= 6000m
So you live 6000m from school

7 0

3 years ago

Read 2 more answers

The functional groups in an organic compound can frequently be deduced from its infrare d absorption spectrum. A compound, C3H6O

Artyom0805 [142]

Answer:

(b.) alkene

(i) aldehyde/ketone

(k.) ester

Explanation:

Peaks observed at:

1740 cm-1 indicates the presence of a carbonyl group: C=O aldehyde, ketone, esters.
1050 cm-1 shows presence of carbo bonded to electronegative elements e.g. C-N or C-O
3000cm-1 is usually indicative of alcohols or carboxylic acid -OH group, which rules out those classes.

5 0

3 years ago

in 1990, the men's singles winner of the us. open tennis tournament has his serves clocked at 127 mi/hr. How fast must a 56.6 g

Naddika [18.5K]

This problem is providing information about the mass of a tennis ball, 56.6 g (0.0566 kg) and asks for the velocity it will have to equal the wavelength of green light, which is 5400 A or 540 nm (5.4x10⁻⁷ m). Thus, after doing the math, the result is 2.17x10⁻²⁶ m/s.

<h3>Broglie's wavelength:</h3>

In this case, we recall the formula of the Broglie's wavelength as shown below:

$\lambda =\frac{h}{mv}$

Whereas lambda is the wavelength, h is the Planck's constant, m the mass and v the speed; thus, we solve for the speed according to the question:

$v =\frac{h}{m\lambda}$

<h3>Calculations:</h3>

Then, we just plug in the numbers we were given to get the answer:

$v =\frac{6.626x10^{-34} kg*\frac{m^2}{s} }{0.056kg*5.4x10^{-7}m}\\\\v=2.17x10^{-26}m/s$

Learn more about Broglie's wavelength: brainly.com/question/5440536

3 0

2 years ago

Tpy6a [65]

Answer:

one is a and my sister in the with me to go in my

6 0

3 years ago

Which argument best explains the charge of an atomic nucleus

8_murik_8 [283]

Answer:

An atomic nucleus is positively charged because it is composed of protons.

Explanation:

hope this helps you:)

7 0

3 years ago

Read 2 more answers