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
Pepsi [2]
4 years ago
13

4. Evaluate the information contained in this calculation and complete the

Chemistry
1 answer:
Neporo4naja [7]4 years ago
7 0

Since you did not give a calculation, I will just give an example. Suppose that you are to burn 5 kg of methane (CH4) from 0 to 10°C. The specific heat capacity of methane is 4.475 kJ/kg-K.

H = mCpT

H = (5kg)( 4.475 kJ/kg-K)(10-0)

H = 223.75 kJ

Because the enthalpy is positive in value, methane takes in heat. 

You might be interested in
When measuring the volume of the marble, why is it better to use the 25-mL graduated cylinder than the 100-mL graduated cylinder
AnnZ [28]

Answer:

\boxed {\tt A \ marble \ is \ small}

Explanation:

A marble is not a very large object, so a smaller graduated cylinder is a better choice.  A 100 milliliter graduated cylinder is not needed to measure the volume of a small marble, so a 25 milliliter graduated cylinder is the best option.

5 0
3 years ago
24. The only thing that Carbon, nitrogen and oxygen want is
Triss [41]
To bond with another atom
7 0
3 years ago
Like all equilibrium constants, Kw varies somewhat with temperature. Given that Kw is 3.31 × 10−13 at some temperature, compute
Artyom0805 [142]
Since Kw= [H⁺][OH⁻], and the concentration of both substances are the same, the equation is now Kw=[H⁺]²
So,
3.31x10⁻¹³ = [H⁺]²
Take the square root= 5.75x10⁻⁷
Then take the negative log to find the pH:
-log(5.75x10⁻⁷) = 6.25
5 0
3 years ago
a natrual distsater caused a population of 4,695 organisms to migrate to a new habitat. a few generations after the disaster it
Scilla [17]

Answer:

49.54%

Explanation:

Given parameters:

Number of organisms in original habitat = 4695

Number of organism in new habitat = 2326

Solution:

To find the percentage of the organisms in the new habitat that has migrated to the new habitat, we use the expression below:

% of the population in the new habitat =  x 100

% of the population in the new habitat =  x 100 = 49.54%

7 0
2 years ago
What does unsaturated zone mean?
Nadya [2.5K]
The unsaturated zone is the portion of the subsurface above the groundwater table. The soil and rock in this zone contains air as well as water in its pores. ... Unlike the aquifers of the saturated zone below, the unsaturated zone is not a source of readily available water for human consumption
6 0
3 years ago
Read 2 more answers
Other questions:
  • Which answer defines exothermic reaction?
    11·2 answers
  • HELPPPP ITS DUE TODAY
    5·1 answer
  • In laboratory, your TA makes a statement about the toxicity of the fumes of a reaction. What does the term toxicity mean?
    12·1 answer
  • A laboratory experiment reauires 2.0L
    14·1 answer
  • An intense emission line for a new element is observed at a wavelength of 675 nm. What is the energy of a single photon of this
    14·1 answer
  • Which of the following makes up the Earth's hydrosphere?
    14·1 answer
  • Complete the following equations (note that the equations are not balanced). Use the activity series if necessary. Li >>Ba
    7·2 answers
  • Can someone do this for me i wasent there when we learned it
    9·1 answer
  • Hydrogen bonding is a type of intermolecular force that exists between polar covalent molecules, one of which has a hydrogen ato
    5·1 answer
  • What will most likely happen when a component is removed from a reaction system at equilibrium?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!