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SVEN [57.7K]
3 years ago
15

What does a very small equilibrium constant (K≪ 1) tell you about the reaction? View Available Hint(s) What does a very small eq

uilibrium constant ( 1) tell you about the reaction? The reaction mixture contains only reactants. The reaction mixture contains large amounts of products (relative to the amount of reactants) at equilibrium. The reaction mixture contains similar amounts of reactants and products at equilibrium. The reaction mixture contains large a
Chemistry
1 answer:
Effectus [21]3 years ago
5 0

Answer: The reaction mixture contains large amounts of reactants

Explanation:

The equilibrium constant (K) tells the degree to which a chemical reaction will progress.

So, a very small equilibrium constant (K≪ 1) tells of a reaction that has the concentration of the products as small, while the concentration of the reactants is large.

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On the periodic table, calcium and bromine are located in period 4. What is one difference between the two elements?
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Answer:

D

Explanation:

Just look at the groups and their tendencies. Or look at their electron configurations. You will notice that calcium has 2 valence electrons and bromine has 7 valence electrons.

Halogens have the most valence electrons possible without completing a shell (8 would be needed for that)

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All the food chains in an ecosystem that are connected together form a ?
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All food chain in an ecosystem that are connected to each other forms a food web....

Therefore the answer is food web

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It has been suggested that hydrogen gas obtained by the decomposition of water might be a substitute for natural gas (principall
Aleks [24]

Answer:

Hydrogen: -141 kJ/g

Methane: -55kJ/g

The energy released per gram of hydrogen in its combustion is higher than the energy released per gram of methane in its combustion.

Explanation:

According to the law of conservation of the energy, the sum of the heat released by the combustion and the heat absorbed by the bomb calorimeter is zero.

Qc + Qb = 0

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We can calculate the heat absorbed by the bomb calorimeter using the following expression.

Q = C . ΔT

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C is the heat capacity

ΔT is the change in the temperature

<h3>Hydrogen</h3>

Qc = -Qb = -C . ΔT = -(11.3 kJ/°C) . (14.3°C) = -162 kJ

The heat released per gram of hydrogen is:

\frac{-162kJ}{1.15g} =-141 kJ/g

<h3>Methane</h3>

Qc = -Qb = -C . ΔT = -(11.3 kJ/°C) . (7.3°C) = -82 kJ

The heat released per gram of methane is:

\frac{-82kJ}{1.50g} =-55kJ/g

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