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3 years ago

Which of the following representations shows the correct placement of trophic levels?

Chemistry

1 answer:

OleMash [197]3 years ago

4 0

You have to start listing from the bottom :

3. Secondary Consumers

2. Primary Consumers

1. Producer

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Why is a xenon atom electrically neutral

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1)The atom has fewer neutrons than electrons. (2) The atom has more protons than electrons. (3) The atom has the same number of neutrons and electrons.

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3 years ago

What are the reactants of lactic acid fermentation

andrew11 [14]

Answer:

energy story for lactic acid fermentation

Explanation:

the reactants are pyruvate NADH and proton

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3 years ago

During its life cycle, an amphibian lives both on land and in water.

lisov135 [29]

Whats your question here?

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4 years ago

5. A gas has a pressure of 310 kPa at 237 degrees C. What will its pressure be at 23 degrees C?)

slavikrds [6]

Answer:

The pressure of the gas at 23 C is 179.92 kPa.

Explanation:

Gay-Lussac's law indicates that, as long as the volume of the container containing the gas is constant, as the temperature increases, the gas molecules move faster. Then the number of collisions with the walls increases, that is, the pressure increases. That is, the pressure of the gas is directly proportional to its temperature.

In short, when there is a constant volume, as the temperature increases, the pressure of the gas increases. And when the temperature is decreased, the pressure of the gas decreases.

Gay-Lussac's law can be expressed mathematically as follows:

$\frac{P}{T} =k$

Studying two states, one initial 1 and the other final 2, it is satisfied:

$\frac{P1}{T1} =\frac{P2}{T2}$

In this case:

P1= 310 kPa
T1= 237 C= 510 K (being 0 C= 273 K)
P2= ?
T2= 23 C= 296 K

Replacing:

$\frac{310 kPa}{510 K} =\frac{P2}{296 K}$

Solving:

$P2=296 K*\frac{310 kPa}{510 K}$

P2= 179.92 kPa

The pressure of the gas at 23 C is 179.92 kPa.

5 0

3 years ago

Which describes the state at which products form at the same rate as reactants?

swat32

Chemical equilibrium is the state in which both reactants and products are present in concentrations which have no further tendency to change with time.
Or, we can say that in chemical equilibrium the ratio between the concentration of the reactants and the products is constant.
Chemical equilibrium is a result state when the forward reaction proceeds at the same rate as the reverse reaction.
Different reactions have different equilibrium.

8 0

3 years ago

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