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nevsk [136]
3 years ago
6

1- Which process are fast in carbon cycle?

Chemistry
1 answer:
g100num [7]3 years ago
6 0

Answer:

During photosynthesis, plants absorb carbon dioxide and sunlight to create fuel—glucose and other sugars—for building plant structures. This process forms the foundation of the fast (biological) carbon cycle.

The Slow Carbon Cycle. ... Atmospheric carbon combines with water to form a weak acid—carbonic acid—that falls to the surface in rain. The acid dissolves rocks—a process called chemical weathering—and releases calcium, magnesium, potassium, or sodium ions.

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A student constructs a galvanic cell that has a strip of iron metal immersed in a solution of 0.1M Fe(NO3)2 as one half-cell and
MrMuchimi

Answer:

Fe

Explanation:

The cell potential is:

ΔE°cell = E°red(red) - E°red(oxid)

Where, E°red(red) is the reduction potential of the substance that is reducing, and E°red(oxid) is the reduction potential of the substance that is oxidizing. For the reaction be spontaneous and happen, ΔE°cell > 0.

The reduction takes place in the cathode, which is the negative pole, and the oxidation in the anode, which is the positive pole. So, the electrons flow from the positive pole to the negative pole (anode to cathode).

Then, if the voltmeter measured a negative potential, it means that is was attached incorrectly. So, the anode is Fe.

4 0
3 years ago
Draw the beta-hydroxy Ketone Intermediate and final condensation product for the following Aldol Reaction: Yol 2200 1 equiv. 2 e
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6 0
3 years ago
Silver nitrate reacts with calcium to make calcium nitrate and silver. The reaction is exothermic and produces 18.7 kJ/mol of en
denis-greek [22]

Answer:

1.63 kilo Joules of energy will be produced when 14.8 g of silver nitrate react.

Explanation:

AgNO_3+Ca\rightarrow Ag+CaNO_3,\Delta H_{rxn}=-18.7 kJ/mol

Mass of silver nitrate = 14.8 g

Moles of silver nitrate = \frac{14.8 g}{170 g/mol}=0.08706 mol

According to reaction, when 1 mole of silver nitrate reacts with 1 mole of calcium it gives 18.7 kJ of heat.

Then amount of heat released when 0.08706 moles of silver nitrate reacts :

0.08706\times 18.7 kJ=1.628 kJ\approx 1.63 kJ

1.63 kilo Joules of energy will be produced when 14.8 g of silver nitrate react.

6 0
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The answer is light years 

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Please help.
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Answer:

1. a series of steps 2. experiment

Explanation:

6 0
3 years ago
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