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3 years ago

Where does the rest of the energy “lost” go? (In food webs)

Chemistry

2 answers:

Blizzard [7]3 years ago

3 0

Explanation:

The rest of the energy is passed on as food to the next level of the food chain. The figure at the left shows energy flow in a simple food chain. Notice that at each level of the food chain, about 90% of the energy is lost in the form of heat.

damaskus [11]3 years ago

3 0

Answer:

While the total energy of a system is always conserved, the kinetic energy carried by the moving objects is not always conserved. In an inelastic collision, energy is lost to the environment, transferred into other forms such as heat.

Explanation:

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Which model of an atom is correctly labeled?

Andreas93 [3]

Answer:

DUH

The nucleus is made up of the protons (which have a positive charge) and neutrons and surrounded by a cloud of electrons ( which have a negative charge ).

8 0

3 years ago

Michael has a substance that he puts in Container 1. The substance has a volume of 5 cubic meters He then puts

xxMikexx [17]

Answer:

gas is the correct answer.

Explanation:

8 0

3 years ago

Pyridinium is a weak acid having a pKa of 5.2. How much pyridine (the conjugate base of pyridinium) must be added to an aqueous

Whitepunk [10]

Answer:

Amount of pyridine required = 0.0316 M

Explanation:

pH of a buffer solution is calculated by using Henderson - Hasselbalch equation.

$pH=pK_a+log\frac{[Conjugate\ base]}{[weak\ acid]}$

Pyridinium is a weak acid and in the presence of its conjugate base, it acts as buffer.

Henderson - Hasselbalch equation for pyridine/pyridinium buffer is as follows:

$pH=pK_a+log\frac{[Py]}{PyH^+]}$

pH = 4.7

$pK_a=5.2$

$PyH^+$ (Pyridinium)=0.100 M

Substitute the values in the formula

$pH=pK_a+log\frac{[Py]}{PyH^+]}\\4.7=5.2 log\frac{[Py]}{0.100}$

$4.7-5.2=log\frac{[Py]}{0.100} \\-0.5=log\frac{[Py]}{0.100}\\\frac{[Py]}{0.100}=antilog -0.5\\\frac{[Py]}{0.100}=0.316$

$\frac{[Py]}{0.100} =0.316$

[Py]=0.0316\ M

Amount of pyridine required = 0.0316 M

7 0

3 years ago

How many moles of ammonia would be required to react exactly with 0.554 moles of copper(II) oxide in the following in chemical r

HACTEHA [7]

The mole of ammonia in this chemical equation is 0.36933 moles of NH3... I hope it helped? :)

3 0

3 years ago

Henry law is obeyed by a gas when gas has high

makkiz [27]

Answer:

Option b

Explanation:

Henry law describes solubility of gases in liquids.

According to Henry's law, amount of gas dissolved in a liquid depends upon its partial pressure above the liquids.

Mathematically, Henry's law is represented as:

C = K × P

Where,

C = Solubility of gas or concentration of gas in liquids

K = Henry's constant

P = Partial pressure of the gas over the liquid

For, Henry's law to be valid, pressure should be not too high and temperature should not be too low. Henry's law is also valid in case of low dissolved gas concentrations.

So, among the given options, option b, temperature is correct.

6 0

3 years ago