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Vitek1552 [10]
3 years ago
5

Which two structures would provide a positive identification of a plant cell under a microscope

Chemistry
2 answers:
katovenus [111]3 years ago
7 0
Lysosome, central vacuole
Talja [164]3 years ago
4 0
Chloroplast, large central vacuole
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as 100 milliliters of 0.10 molar KOH is added to 100 milliliters of 0.10 molar HCL at 298 K, the pH of the res?A. decrease to 3B
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C. increase to 7.

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Hello,

In this case, the undergoing chemical reaction is:

KOH+HCl\rightarrow KCl+H_2O

Thus, the molar relationship is 1 to 1, therefore, the moles are:

n_{HCl}=0.1mol/L*0.1L=0.01molHCl\\n_{KOH}=0.1mol/L*0.1L=0.01molKOH\\

Thus, since the entire hydrogen ions are neutralized, the pH C. increase to 7.

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How would Bohr model show the protons in a carbon atom
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The Bohr model show the protons in a carbon atom using the model;  "Electrons move in fixed orbits around a nucleus of protons and neutrons."

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A graphic description of this is shown in the image attached to this answer.

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