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2 years ago

_______ is the process in which light energy is transformed into food energy. A.life B.photosynthesis C.abiotic D.biotic

Chemistry

2 answers:

kolezko [41]2 years ago

4 0

Answer:

B) Photosynthesis is the process in which light energy is transformed into food energy.

Ymorist [56]2 years ago

4 0

Answer:

Photosynthesis

Explanation:

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A galvanic cell with E o cell = 0.30 V can be constructed using an iron electrode in a 1.0 M Fe(NO3)2 solution, and either a tin

Andreyy89

Answer: The half reactions are written below.

Explanation:

Oxidation reaction is defined as the reaction in which an atom looses its electrons. The oxidation number of the atom gets increased during this reaction.

$X\rightarrow X^{n+}+ne^-$

Reduction reaction is defined as the reaction in which an atom gains electrons. The oxidation number of the atom gets reduced during this reaction.

$X^{n+}+ne^-\rightarrow X$

We are given a chemical cell which is Fe-Sn cell. The half reaction follows:

Oxidation half reaction: $Fe\rightarrow Fe^{2+}+2e^-;E^o_{Fe^{2+}/Fe}=-0.44V$

Reduction half reaction: $Sn^{2+}+2e^-\rightarrow Sn;E^o_{Sn^{2+}/Sn}=-0.14V$

The substance having highest positive $E^o$ potential will always get reduced and will undergo reduction reaction. Here, zinc will always undergo reduction reaction will get reduced.

Total cell reaction: $Fe+Sn^{2+}\rightarrow Fe^{2+}+Sn$

Hence, the half reactions are written above.

3 0

2 years ago

I'd: 9872093250, password: qqqqq, join the meeting

yanalaym [24]

No but give me thanks

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2 years ago

The clouds of Venus consist mainly of ______. Group of answer choices carbon monoxide droplets of water vapor hydrogen and heliu

Zanzabum

Answer:

droplets of sulfuric acid

Explanation:

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2 years ago

C2h6o how many moles of ethanol are present in a 10.0 g sample of ethanol

Dmitriy789 [7]

46 gram of ethanol ≡ 1 mole of ethanol
1 gram of ethanol ≡ 1/46 mole of ethanol
10 gram of ethanol ≡ 1*10/46 mole of ethanol
=0.217 mole of ethanol

5 0

2 years ago

Read 2 more answers

5. Which of the following has variable composition A. Water B. sugar C, soil D. Salt

erica [24]

Answer:

C. Soil

Explanation:

The choice with variable composition is the soil. Soil have many different composition.

Soil is made up of minerals, organic matter , water and soil air.
Soil minerals are derived from weathered bedrock materials that have been broken down into small pieces.
Organic matter is derived from dead and decaying materials from plants and animals.
All these materials combine together to form a soil.

7 0

2 years ago