1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stira [4]
3 years ago
9

B The allusions recall specific locations and horrors of the Vietnam conflict.How many moles of H2O are produced when 12 moles o

f NH3 reacts with excess O2?
4 NH3 + 5 O2 → 4 NO + 6 H2O



Group of answer choices

18 moles H2O


12 moles H2O


6 moles H2O


9 moles H2O
Chemistry
1 answer:
ziro4ka [17]3 years ago
7 0

<u>Answer:</u> 18 moles of H_2O will be produced.

<u>Explanation:</u>

We are given:

Moles of ammonia = 12 moles

The given chemical equation follows:

4NH_3+5O_2\rightarrow 4NO+6H_2O

By the stoichiometry of the reaction:

4 moles of ammonia produces 6 moles of water

So, 12 moles of ammonia will produce = \frac{6}{4}\times 12=18mol of water

Hence, 18 moles of H_2O will be produced.

You might be interested in
An atom has three full orbitals in its second energy level.
ICE Princess25 [194]
Orbitals am only hold two electrons each, so 3 orbitals can hold 6 electrons
7 0
3 years ago
Read 2 more answers
Phosphorus will ____ electrons to complete its octet changing into an ____
Paraphin [41]
Steal; Anion
This is the answer because phosphorous is very electronegative.
3 0
3 years ago
A scientist formulates the following hypothesis: If plants of the same species
Blababa [14]

Answer:

Growth rate

Explanation:

The responding variable, also known as the DEPENDENT VARIABLE, is the variable that responds to changes or manipulations made to another variable (independent or manipulable variable) in the experiment. It is the measured variable of an experiment.

According to the hypothesis provided for this investigation, the scientist wants to determine if the amount of fertilizer plants of the same species receive will affect their growth rate when planted in the same condition. This shows that the independent variable is the amount of fertilizer to be used while the RESPONDING VARIABLE OR DEPENDENT VARIABLE is the GROWTH RATE OF THE PLANTS because it responds to the amount of fertilizer.

7 0
3 years ago
Scientific argumentation makes scientific results. A) stronger. B) invalid . C) permanent. D) biased
Vlad1618 [11]
A should be the correct answer because any argument based on science makes a result more logical.
3 0
3 years ago
Calcule a variação da entalpia dessa reação ( 2 NH3 (g) ---&gt; CO(NH2)2 (s) + H2O (L) ) a partir das seguintes equações termoqu
Nitella [24]

ΔH = +438 kJ  

We have three equations:  

(I) N₂ + 3H₂ → 2NH₃; Δ<em>H</em> = -92 kJ  

(II) H₂ +½O₂ → H₂O; Δ<em>H</em> = -286 kJ  

(III) CO(NH₂)₂ + ³/₂O₂ → CO₂ + 2H₂O + N₂; Δ<em>H</em> = -632 kJ  

From these, we must devise the target equation:  

(IV) 2NH₃ + CO₂ → CO(NH₂)₂ + H₂O; Δ<em>H</em> = ?  

_________________________________

The target equation has 2NH₃ on the left, so you <em>reverse equation (I)</em>.  

When you reverse an equation, you <em>reverse the sign of its ΔH</em>.  

(V) 2NH₃ → N₂ + 3H₂; Δ<em>H</em> = +92 kJ  

Equation (V) has 1N₂ on the right, and that is not in the target equation.  

You need an equation with 1N₂ on the left.  

<em>Reverse Equation (III).</em>  

(VI) CO₂ + 2H₂O + N₂ → CO(NH₂)₂ + ³/₂O₂; Δ<em>H</em> = +632 kJ  

Equation <em>(VI)</em> has ³/₂O₂ on the right, and that is not in the target equation.  

You need ³/₂O₂ on the left.  

Multiply <em>Equation (II) by three</em>.  

When you multiply an equation by three, you <em>multiply its ΔH by thre</em>e.

(VII) 3H₂ +³/₂O₂ → 3H₂O; Δ<em>H</em> = -286 kJ  

Now, you add equations (V), (VI), and (VII), <em>cancelling species</em> that appear on opposite sides of the reaction arrows.  

When you add equations, you add their Δ<em>H</em> values.  

_______________________________________

We get the target equation (IV):  

(V) 2NH₃ → <u>N</u>₂ + <u>3H</u>₂;                                    ΔH = +  92 kJ  

(VI) CO₂ + <u>2H</u>₂<u>O</u> + <u>N</u>₂ → CO(NH₂)₂ + ³/₂<u>O</u>₂; ΔH = +632 kJ  

(VII) <u>3H</u>₂ +³/₂<u>O</u>₂ → <u>3</u>H₂O;                             ΔH =   -286 kJ

(IV) 2NH₃ + CO₂ → CO(NH₂)₂ + H₂O;          ΔH =  +438 kJ  


7 0
3 years ago
Other questions:
  • Which balanced equation represents a redox reaction?
    6·2 answers
  • What happens in a neutralization reaction?
    10·1 answer
  • How many moles are equal to 1.4 x 10^24 atoms of aluminum
    5·1 answer
  • A solution of KCIO3 is prepared using 75 grams of the solute in enough water to make 0.250 liters of solution. The gram-formula
    6·1 answer
  • Why do amorphous solids not have a long-range order in the arrangement of their particles?
    15·2 answers
  • WILL GIVE BRAINLIEST FOR CORRECT ANSWERS W/ EXPLANATION
    7·1 answer
  • The voltage in a flashlight bulb is 6.0 volts and has a resistance of 24 ohms. Calculate the current
    8·2 answers
  • A ring made of pure gold contains 5.29 x 1022 atoms. How many moles are in the ring?
    6·1 answer
  • What is the frequency of a particular type of electromagnetic
    7·1 answer
  • How does width affect capillary rise?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!