3 years ago

How something works is related to its structure

Chemistry

1 answer:

boyakko [2]3 years ago

6 0

True?

Step by step explanation:
Not sure if this is what you wanted.

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When copper (II) chloride reacts with sodium nitrate, copper (II) nitrate and sodium chloride are formed.

anzhelika [568]

Answer:

How many grams of copper (II) nitrate is formed

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2 years ago

What type of chemical reaction involves 2 or more elements combining to form one?

Vikki [24]

Hey there!

I believe the answer is Combination (or Synthesis) Reaction.

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2 years ago

Calculate the standard reaction enthalpy for the reaction NO2(g) → NO(g) + O(g) given +142.7 kJ/mol for the standard enthalpy of

bulgar [2K]

Answer:

The standard reaction enthalpy for the given reaction is 235.15 kJ/mol.

Explanation:

$O_2(g) \rightarrow \frac{2}{3}O_3(g),\Delta H^o_{1}=142.7 kJ/mol$ ..[1]

$O_2(g) \rightarrow 2 O(g),\Delta H^o_{2}=498.4 kJ/mol$ ..[2]

$NO(g) + O_3(g)\rightarrow NO_2(g) + O_2(g) ,\Delta H^o_{3} = -200 kJ/mol$ ..[3]

$NO_2(g)\rightarrow NO(g) + O(g),\Delta H^o_{4}=?$ ..[4]

Using Hess's law:

Hess’s law of constant heat summation states that the amount of heat absorbed or evolved in a given chemical equation remains the same whether the process occurs in one step or several steps.

2 × [4] = [2]- (3 ) × [1] - (2) × [3]

$2\times \Delta H^o_{4}=\Delta H^o_{2} -3\times \Delta H^o_{1}-2\times \Delta H^o_{3}$

$2\times \Delta H^o_{4}=498.4 kJ/mol-3\times 142.7 kJ/mol-2\times -200 kJ/mol$

$2\times \Delta H^o_{4}=470.3 kJ/mol$

$\Delta H^o_{4}=\frac{470.3 kJ/mol}{2}=235.15 kJ/mol$

The standard reaction enthalpy for the given reaction is 235.15 kJ/mol.

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2 years ago

Molecule A is: A. Isocitrate B. Pyruvate C. Alpha-ketoglutarate D. Oxaloacete E. None of the above

hodyreva [135]

Answer:... I'm sorry.. I think you're missing something

Explanation:

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2 years ago

SOMEONE HELP ME

nikdorinn [45]

The answer is Sliver reacts with nitric acid to produce a gas.

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3 years ago