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
larisa [96]
3 years ago
9

A student dissolves of sodium hydroxide in of water in a well-insulated open cup. He that observes the temperature of the water

rise from to over the course of minutes. Use this data, and any information you need from the ALEKS Data resource,
NaOH(s) rightarrow Na+(aq) + OH-(aq)
You can make any reasonable assumptions about the physical properties of the solution. Note for advanced students: it's possible the student did not do the experiment carefully, and the values you calculate may not be the same as the known and published values for this reaction.
1. Is this reaction exothermic, endothermic, or neither.
2. If you said the reaction was exothermic or endothermic, calculate the amount of neat that was released or absorbed by the reaction in this case.
3. Calculate the reaction enthalpy AW per mole of NaOH.
Chemistry
1 answer:
forsale [732]3 years ago
7 0

Answer:

This question is incomplete

Explanation:

This question is incomplete but the answer to (1) and steps involved in calculating (2) and (3) will be discussed in the attachment

1. The reaction is an exothermic reaction because heat was given off. Exothermic reaction is a reaction in which heat is released from a reaction into the surroundings. And according to the question, the student observed <em>that the temperature of the water increased during the course of the minutes.</em>

Download docx
You might be interested in
A substance is followed by the symbol (I) in a chemical Equation. What does the symbol Represent
Ber [7]

Answer:

Iodine

Explanation:

Hope this helps. Think about me, when giving out brainiest.

8 0
3 years ago
Compare and contrast what happens to the particles of an ionic solid and a molecular solid when each mixes with water
Setler79 [48]
The answer to the question asked  above is that in a Molecular Solid, the substance just dissolves into the solution when added to water but ionic solid does not.


Hope my answer would be a great help for you.    If you have more questions feel free to ask here at Brainly.

7 0
4 years ago
Balance the following skeleton reactions and identify the oxidizing and reducing agents:(b) P₄(s) → HPO₃²⁻(aq) + PH₃(g) [acidic]
m_a_m_a [10]

The balanced chemical equation is :

5P₄ + 36OH → 12HPO₃⁻² (aq) + 8PH₃ (acidic)

Here the oxidation number of P changed from 0 to -3 in PH₃ and increases  from 0 to +3 in HPO₃⁻². When P₄ changes to PH₃ reduction reaction is taking place as there is addition of hydrogen and when P₄ changes to HPO₃⁻² oxidation takes place as there is addition of oxygen.

Thus clearly both reduction and oxidation are taking place.

Thus, we can infer that here P₄ is both oxidizing as well as reducing agent.

To know more about oxidation number here:

brainly.com/question/13182308

#SPJ4

5 0
2 years ago
BRAINLIEST ANSWER! PLEASE HELP!! An Earth-like planet is 500 light years away. Why is this an obstacle for a manned space missio
Setler79 [48]
I Would think it would be C Since Humans can't live 500 years but then yet again it is light years not regular years i think if you find how man years is 500 light years the that could help you in finding the answer 
7 0
3 years ago
PLEASE HELP WILL GIVE BRAINLIEST!!!
My name is Ann [436]

Answer: It's the anode broski (B)

Explanation: I'm taking the Chem summer course too broski, this was the correct answer. Cheers broski

8 0
3 years ago
Other questions:
  • What is the relationship between the concentration of particles in a solution and the solution’s vapor pressure? As solute conce
    8·2 answers
  • Three samples of a solid substance composed of elements A and Z were prepared. The first contained 4.31 g A and 7.70 g Z. The se
    6·1 answer
  • The amplitude of a wave is most directly related to what wave characteristic? Crest length
    12·1 answer
  • The thermal isomerization of cyclopropane to propene has a rate constant of 5.95 × 10−4 s−1 at 500oc. calculate the value of the
    6·1 answer
  • How many mL of 0.50 M NaOH solution are required to completely titrate 15.0 mL of 0.20 M HNO3 solution?
    8·1 answer
  • 7. In which environment would liverworts and hornworts grow?
    10·1 answer
  • I don’t know if it’s that one or not
    7·1 answer
  • Help me out u get points Select the correct answer from each drop-down menu.
    15·2 answers
  • Do the rocks get older or younger as you go away from the Mid Atlantic Ridge
    13·1 answer
  • What is the mass of 1.9 x 10^22 molecules of CaCO3?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!