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Nikitich [7]
3 years ago
12

Which of these statements explains the relationship among elements, compounds, and mixtures? A. Elements are made of compounds a

nd mixtures. B. Both compounds and mixtures are made up of elements. C. Mixtures are made of elements, and elements are made of compounds. D. Compounds are made of mixtures, and mixtures are made of elements.
Chemistry
2 answers:
Nady [450]3 years ago
7 0

Answer:

Its B, both compounds and mixtures are made up of elements.

sweet-ann [11.9K]3 years ago
5 0
The answer is answer D
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PLEASE NEED HELP!!!!!<br> Name the following compound
stepan [7]

Answer:

3-methylhexane

Explanation:

For naming alkane molecules follow the following steps

1) Find the longest continuous carbon chain and count the number of carbons

In this structure, it is from the bottom, then up, then to the right. Making a right angle. There is 6 carbons in this chain which means it's a hexane

2) Number the longest carbon chain so the constituents (parts not part of the carbon chain) are connected to the carbon with smallest number possible.

This gives the extra CH3 group connected to carbon 3

3) Put it all together

Methyl connected to carbon 3 + hexane

3-methylhexane

5 0
2 years ago
How wide in m is a single slit that produces its first minimum for 624-nm light at an angle of 18. 0°?
Mariulka [41]

A single slit with a width of 2019 * 109 m creates its initial minimal for 624 nm light at an angle of 18°.

How does diffraction work?

Waves spreading outward around obstructions are known as diffraction. Diffraction happens with sound, electromagnetic radiation like light, X-rays, and gamma rays, as well as with incredibly minuscule moving particles like atoms, neutrons, and electrons that exhibit wavelike qualities. Diffraction prevents the creation of sharp shadows as one of its effects. In order to spread out and illuminate regions at which a shadow is anticipated, light must be bent around corners, which is known as diffraction.

Calculation:

Provided for a single slit, m=1

λ = 624 *10⁻⁹

sinθ = sin 18⁰

Therefore,

asinθ=mλ

a = \frac{1 * 624 *10^{-9} }{sin 18}

⇒a = 2019 *10⁻⁹ m

Therefore the width of a single slit is 2019 *10⁻⁹ m.

Learn more about single slit here:

brainly.com/question/14283857

#SPJ4

6 0
2 years ago
Evaluate the following conversion. Will the answer be correct? Explain. If incorrect, how could you adjust one of the factors to
elena55 [62]

Given :

Rate = 75 m 1 s×60 s 1 min×1 h 60 m.

To Find :

Correct answer after conversion.

Solution :

We know, 1 min = 60 sec.

1 hour = 60 min = 60×60 sec = 3600 sec.

Putting value of min and hour in seconds , we get :

R=((75\times 60) + 1 )\times ( (60 + 1)\times 60 ) \times ( 3600+3600)\ s^3\\\\R=1.186\times 10^{11} \ s^3

Hence, this is the required solution.

6 0
3 years ago
Recycling of aluminum cans is an example of A) increasing entropy is a nonspontaneous process B) decreasing entropy is a nonspon
Helen [10]

Answer:

B) decreasing entropy is a non-spontaneous process

Explanation:

3 0
4 years ago
How does a planet’s motion affect its length of day and year?
rosijanka [135]

Answer:

Every location on Earth experiences an average of 12 hours of light per day but the actual number of hours of daylight on any particular day of the year varies from place to place.

5 0
3 years ago
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