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3 years ago

Two processes are described below:

Chemistry

1 answer:

Brilliant_brown [7]3 years ago

5 0

B. both are chemical

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For energy calculations, height must be measured in the unit of *

Sveta_85 [38]

I think its meters??

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3 years ago

You are analyzing a compound in a laboratory. you find that it is made up of carbon, hydrogen, and oxygen in a ratio of two hydr

kotegsom [21]

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3 years ago

The decomposition of N I 3 to form N 2 and I 2 releases − 290.0 kJ of energy. The reaction can be represented as 2N I 3 (s)→ N 2

ella [17]

Answer:

The change in enthaply when 10.0 g of nitrogen triiodide decomposes is -3.67 kJ.

Explanation:

$2NI_3 (s)\rightarrow N_2 (g)+3 I_2 (g), \Delta H_{rxn} =-290.0 kJ$

Enthalpy of the reaction when 2 moles of nitrogen triiodide decomposed = $\Delta H_{rxn}$

$\Delta H_{rxn} = -290.0 kJ$

Enthalpy of the reaction when 1 moles of nitrogen triiodide decomposed :

$\Delta H=\frac{\Delta H_{rxn}}{2}=\frac{-290.0 kJ}{2} =-145.0 kJ$

Mass of nitrogen triiodide decomposed = 10.0 g

Moles of nitrogen triiodide = $\frac{10.0 g}{395 g/mol}=0.02532 mol$

Change in enthaply when 0.02532 moles of nitrogen triiodide decomposed:

$\Delta H\times 0.02532=-145 kJ\times 0.02532=-3.67 kJ$

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3 years ago

Which statements differentiate DNA and RNA? Select three options.

Morgarella [4.7K]

Answer:

A.) DNA is a double helix, and RNA is a single strand.

C.) DNA is involved only in transcription, and RNA is involved in both transcription and translation.

E.) DNA does not have uracil as a nitrogen base, but RNA does have uracil as a nitrogen base.

Explanation:

Have a great rest of your day
#TheWizzer

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2 years ago

Read 2 more answers

Given the following rate equation, complete the sentences to identify the reaction order for each reagent, the overall reaction

Eva8 [605]

Answer:

1. First

2. Third

3. Fourth

4.remain the same as

Explanation:

Given the reaction equation;

Rate= k[A] [B]^3

We can see that the order of reaction is first order with respect to reactant A and third order with respect to reactant B. This gives an overall fourth order reaction.

If the concentration of A is doubled and that of B is halved. The rate of reaction remains the same.

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3 years ago