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alexdok [17]
3 years ago
15

7. ____ is a chemical compound that forms tangled fibers in the cell walls of plants.

Chemistry
1 answer:
Kruka [31]3 years ago
8 0
1. option C. cellulose

2. option A. angiosperms (I found in Internet that they represent 80% of the green plants)
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Who conducted experiments to determine the quantity of charge carried by an electron?
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Answer:

it was Millikan. He conducted the oil drop experiment. Thomson determined the electon charge not the quantity. Rutherford used the gold foil experiment to find positive charge and that most of the atom is empty space. Dalton proposed that matter was made of small particles called atoms but that was a concept already proposed by ancient greeks. Dalton also proposed the atomic theory.

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Which of the following types of mixtures exhibit the Tyndall effect?
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3 years ago
Which metal can be used as a sacrificial electrode to prevent the rusting of an iron pipe? auau cucu mnmn agag
Cerrena [4.2K]

Mn metal can be used as a sacrificial electrode to prevent the rusting of an iron pipe. So, the correct option is (c) Mn.

Commonly, sacrificial electrodes are employed to stop another metal from corroding or oxidising. A metal that is more reactive than the metal being shielded must serve as the sacrificial electrode. Magnesium, aluminium, and zinc are the three metals most frequently used in sacrificial anodes.

Manganese-Magnesium (Mn-Mg) electrode is more suited for on-shore pipelines where the electrolyte (soil or water) resistivity is higher since it has the highest negative electropotential of the three. In order to replenish any electrons that could have been lost during the oxidation of the shielded metal, the highly active metal offers its electrons.

Therefore, Mn metal can be used as a sacrificial electrode to prevent the rusting of an iron pipe. So, the correct option is (c) Mn.

Learn more about electrode here:

brainly.com/question/17060277

#SPJ4

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1 year ago
How much °f of 35°C ? <br>help me please<br>​
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Answer: 95 degrees fahrenheit hope this helps :]

Explanation:

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Electromagnet creates electricity.

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4 0
2 years ago
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