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____ [38]
2 years ago
10

What is the frequency of yellow light, which has a wavelength of 5.56 x 10^-7 m?

Chemistry
1 answer:
Mnenie [13.5K]2 years ago
7 0
The answer is B 5.40 x 10^14 Hz
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Which block of elements do the halogens belong to?<br> a. p block<br> c. d block<br> b. s block?
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A. p block

from 3a-8a are in the p block including halogen
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Only purple flowers result from a cross between purple-flowered pea plants and white-flowered pea plants. What does this indicat
qwelly [4]

Answer:

Purple flowers are dominant

Explanation:

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Most of the food that organisms eat can be traced back to? .
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Answer:

A. Plants

Explanation:

Plants are producers, which make their own food. Other organisms, such as rodents, birds, and wild cats, are consumers, which receive their energy from plants or other consumers.

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2 years ago
A reaction is spontaneous if ΔG is ___?<br> negative, positive, or zero?
amm1812

Answer:

A reaction is spontaneous if ΔG is negative.

Explanation:

  • The change in free energy (ΔG) is the difference between the heat released during a process and the heat released for the same process occurring in a reversible manner.

  • The sign of ΔG gives an indication for the spontaneity of the reaction:

If ΔG is negative, the reaction is spontaneous.

If ΔG = zero, the reaction is at equilibrium.

If ΔG is positive, the reaction is non-spontaneous.

3 0
3 years ago
Elaborate on how to classify elements and pure compounds.
tankabanditka [31]

Answer: C) Elements and pure compounds are homogeneous materials because they have a uniform composition throughout.

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Elements are compounds form homogeneous materials as they have uniform composition throughout and the components are evenly distributed throughout the material.

Mixtures are heterogeneous materials as they do not have uniform composition and the components are not evenly distributed throughout the material.

4 0
3 years ago
Read 2 more answers
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