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
olga nikolaevna [1]
3 years ago
7

What is enthalpy?

Chemistry
1 answer:
Step2247 [10]3 years ago
6 0

Enthalpy is the total heat content of a system.

You might be interested in
If a sample of sodium chloride with a mass of
alex41 [277]
Original molarity was 1.7 moles of NaCl

Final molarity was 0.36 moles of NaCl

Given Information:

Original (concentrated) solution: 25 g NaCl in a 250 mL solution, solve for molarity

Final (diluted) solution: More water is added to make the new total volume 1.2 liters, solve for the new molarity

1. Solve for the molarity of the original (concentrated) solution.

Molarity (M) = moles of solute (mol) / liters of solution (L)

Convert the given information to the appropriate units before plugging in and solving for molarity.

Molarity (M) = 0.43 mol NaCl solute / 0.250 L solution = 1.7 M NaCl (original solution)

2. Solve for the molarity of the final (diluted) solution.

Remember that the amount of solute remains constant in a dilution problem; it is just the total volume of the solution that changes due to the addition of solvent.

Molarity (M) = 0.43 mol NaCl solute / 1.2 L solution

Molarity (M) of the final solution = 0.36 M NaCl

I hope this helped:))
6 0
3 years ago
Can you guys help me answer question 5 on homogeneous mixture tysm
hjlf

Answer:

Hope this helped :) good luck! ❤️

Explanation:

A <em>coolant solution</em> is a <u><em>homogeneous </em></u>mixture because the coolant particles are not chemically combined with the water (keep their properties) and they are evenly distributed throughout the water.

7 0
3 years ago
As a mixed two substance in a test tube she noticed that the test tube because warm she also noticed gas coming from the test tu
lesya [120]
That is convection my friend
4 0
3 years ago
Read 2 more answers
Please help me I can’t figure it out
lukranit [14]
The answer is A. because as you can see it pulls the force
8 0
4 years ago
How is conductivity related to pH?​
timama [110]

Answer:

Strongly acidic [or strongly basic] solution will have high conductivity.

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • 2Na(s) + Cl2(g) ------ 2NaCl(s)
    9·1 answer
  • How many moles are in 16.94g of water?
    15·1 answer
  • A block has sides that are 2cm long, 3 cm wide, and 2cm high. What is the volume ?
    5·1 answer
  • Suppose that 0.88g of water condenses on a 75.0-g block of iron that is initially at 22 degrees Celsius. If the heat released du
    11·1 answer
  • Compare and contrast granite and rhyolite
    7·2 answers
  • rite an equation for the formation one mole of CaCO3(s) from its elements in their standard states. Write any reference to carbo
    11·1 answer
  • PLEASE HELP me create a fictional video game using at least 2 of the ecological roles. (roles to choose from: decomposer, detrit
    12·1 answer
  • 2Ni(OH) → Ni2O + H2O <br> How many moles of water forms from 4.20 mol of nickel (I) hydroxide?
    10·1 answer
  • Once at the top. the wax molecules begin to___________ energy to the glass then the surrounding air.
    5·1 answer
  • PLZ HELP
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!