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
Galina-37 [17]
3 years ago
7

Lab report enthalpy

Chemistry
2 answers:
Mice21 [21]3 years ago
8 0

Answer:

The purpose of this experiment was to verify Hess’s law associated with three reactions. Our experiment confirmed it by combining the enthalpy changes of two reactions to equal of that another single reaction (Reaction 2 in our case). Styrofoam cup was used as a calorimeter to measure the change in temperature, which is a necessary variable for further calculations. We discovered that sum of enthalpy changes for reactions one and three equaled the enthalpy change in reaction two. This experiment was possible because if one of the reactions is the same as the combination of other two, the heat of the reaction of the single reaction should be equal to the heat of other two reaction combined.

Explanation: when you see the reactions that the Hess's law to find the enthalpy, which we did from this lab.

vazorg [7]3 years ago
6 0

Answer:

The data table is attached and it is the first one but I am not sure about the second one so hopefully someone figured it out

Explanation:

Ed ge 2021

You might be interested in
I'll give u thirty points
salantis [7]
I hope this helps answer some of your questions.

3 0
3 years ago
How and why do ionic bonds form? Check all of the boxes that apply. Ionic bonds form between metal atoms and other metal atoms.
sammy [17]

2 Ionic bonds form between metal atoms and nonmetal atoms.

4 The less electronegative atoms transfers one or more electrons to the more electronegative atom.

5 The metal atom forms a cation and the nonmetal atom forms an anion.

7 The attraction between ions with an opposite charge forms an ionic bond.



8 0
4 years ago
Read 2 more answers
According to the graph, how many mice will be born in week 5 if the trend continues? <br>​
dlinn [17]
Okay so the answer to this one is very simple 91
7 0
3 years ago
Which is not one of the parts of the cell theory.
alekssr [168]

Answer:

Pretty sure the answer is d) cells come from nonliving objects

Explanation:

i just think i remember xd

7 0
3 years ago
what is the total amount of energy absorbed by the substance as it completely changes from a solid at 40 degrees to a gas at 200
astra-53 [7]

Answer:

I don't know the answer sorry man

6 0
3 years ago
Other questions:
  • How many moles is 1.50x10^23 molecules of NH3?
    10·2 answers
  • 0.0400 M solution of HClO2, pH = 1.80 solve for Ka
    7·1 answer
  • Which scientist is credited with developing the first scientific atomic theory?
    8·2 answers
  • A 13.5g sample of gold is heated, then placed in a calorimeter containing 60g of water. The temperature of water increases from
    11·1 answer
  • Why is it necessary to determine if a reactant is a limiting reagent in a reaction
    5·1 answer
  • Draw an alkyl bromide with proper stereochemistry that can be used to synthesize the given alkene as the exclusive product via a
    7·1 answer
  • Which of the following occurs in cells only produce male and female cells
    7·1 answer
  • 2-ciclopropilpropano​
    14·1 answer
  • A 5g piece of aluminum foil (c=0.897) at 100°C is dropped into a 25g container of water (c=4.184) at 20°C. What is the final tem
    13·1 answer
  • Which of these phrases is an example of a sensory detail?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!