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12345 [234]
3 years ago
8

Which of the following correctly describes one way that photosynthetic plants are involved in the carbon cycle? Choose 1 answer:

Choose 1 answer: (Choice A) A Photosynthetic plants can move carbon from the atmosphere into an ecosystem’s food web. (Choice B) B Photosynthetic plants break down the remains of organisms and release carbon dioxide into the atmosphere. (Choice C) C Photosynthetic plants move carbon-based molecules between consumers in an ecosystem
Chemistry
1 answer:
brilliants [131]3 years ago
7 0

Answer:

The correct answer is - (Choice A) A Photosynthetic plants can move carbon from the atmosphere into an ecosystem’s food web.

Explanation:

Photosynthesis is the process performed by photosynthetic or green plants in presence of light atmospheric carbon dioxide and water converted into glucose (6 carbon compound) and oxygen.

This glucose or sugar is utilized by the plants that are producers in the ecosystem food web. These producers are fed by consumers and carbon molecules transfer from all the trophic levels in the food chain or food web in the process.

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If the reactants have a potential energy of 10.2 kJ/mol and the products have a potential
Citrus2011 [14]

Answer:

The ΔH is 5.5 kJ/mol and the reaction is endothermic.

Explanation:

To calculate the ∆H (heat of reaction) of the combustion reaction, that is, the heat that accompanies the entire reaction, you must make the total sum of all the heats of the products and of the reagents affected by their stoichiometric coefficient ( number of molecules of each compound participating in the reaction) and finally subtract them:

Combustion enthalpy = ΔH = ∑H products - ∑Hreactants

In this case:

ΔH = 15.7 kJ/mol - 10.2 kJ/mol= 5.5 kJ/mol

An endothermic reaction is one whose enthalpy value is positive, that is, the system absorbs heat from the environment (ΔH> 0).

<u><em>The ΔH is 5.5 kJ/mol and the reaction is endothermic.</em></u>

4 0
3 years ago
The alveoli are surrounded by __________ carrying blood to and from the heart.
natka813 [3]
The alveoli are surrounded<span> by tiny blood vessels, called capillaries. The </span>alveoli<span> and capillaries both have very thin walls, which allow the oxygen to pass from the </span>alveoli<span>to the blood. The capillaries then connect to larger blood vessels, called veins, which bring the oxygenated blood from the lungs to the heart.</span>
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3 years ago
Give me lil reasoning so I know your not lying for points
Delvig [45]

Answer:

As the temperature increases the pressure increases.

Explanation:

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A dry mixture of KNO3 and sand could be separated by
Tatiana [17]
Place the mixture in hot water and stir well. 
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ss7ja [257]
There can only be two electrons in the innermost shell of an atom so b is the correct answer
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