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3 years ago

As the mass of a sample increases, the number of moles present in the sample

Chemistry

2 answers:

vivado [14]3 years ago

4 0

Answer:

increases

Explanation:

kotykmax [81]3 years ago

3 0

Answer: will also increase

Explanation:

If the mass in a sample increases, the number of molecules will also increase. Hope this helps!

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Draw the 2 resonance structures of Malachite Green, and indicate which one is the equivalent contributor, and which one is the m

Yuri [45]

The two structures at the right of the image are the greatest contributors to the resonance structure of malachite green.

<h3>What is resonance structure?</h3>

In some cases, one single structure is insufficient to explain the properties of a substance. Now, we know that in such cases we have to invoke more than one structure in order to efficiently discuss the chemistry of the compounds in question.

In this case, we can see from the image that the three structures of malachite green are all resonance structures. However, the two structures at the right hand side are the greatest contributors because they are more conjugated. Hence, the two structures at the right of the image are the greatest contributors to the resonance structure of malachite green.

Learn more about resonance structure:brainly.com/question/23287285

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1 year ago

Draw the structure of a compound of molecular formula C4H8O that has a signal in its 13C NMR spectrum at ≥ 160 ppm. Then draw th

-Dominant- [34]

Answer:

1. Butyraldehyde; 2. but-3-en-1-ol

Explanation:

1. Peak ≥ 160 ppm

The formula C₄H₈O shows that the Index of Hydrogen Deficiency = 1.

It could be caused by either a ring or a double bond.

A peak at ≥ 160 ppm strongly indicates a C=O group, so the rest of the molecule can contain no rings or double bonds.

There are no other heteroatoms, so the compound most be an aldehyde or a ketone.

One compound that meets these criteria is butyraldehyde, CH₃CH₂CH₂CH=O (see Fig. 1.)

2. No rings; all peaks < 160 ppm

If all peaks are < 160 ppm, there can no C=O group.

There is no ring, so there must be a C=C double bond.

There is no other unsaturation, so the O atom must be present as an alcohol or an ether.

One compound that meets these criteria is but-3-en-1-ol, CH₂=CHCH₂CH₂OH (see Fig. 2).

4 0

2 years ago

Which of the following is the most recent addition to the accepted model of the atom? (2 points) Atoms are indivisible particles

Georgia [21]

The accepted model of an atom was made by Schrodinger, which is known as the quantum mechanical model. Unlike Bohr's model, electrons are represented as a cloud and not small balls orbiting the nucleus. There is no define path of electrons in Schrodinger's model, but it can predict the odds of where an electron is located.

The answer to your question is then Electrons form a cloud around the nucleus.

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3 years ago

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Parts of the experiment that are controlled by the scientist are called

Anni [7]

A. Variables, this is because you can choose what you're testing

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active transport requires __ and __ in order to function correctly. a) nucleic acids, membrane proteins b) energy, membrane prot

Anna [14]

B. Energy and membrane proteins, the energy is to give the extra push if a molecule is moving against the gradient and the membrane protein is the passage from in or outside the cell

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2 years ago