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
MrRa [10]
3 years ago
8

Is the enthalpy change when 1 mole of a substance undergoes complete

Chemistry
1 answer:
ipn [44]3 years ago
7 0

Answer:

Explanation:

Standard enthalpy of combustion (ΔH∘C) is the enthalpy change when 1 mole of a substance burns under standard state conditions;

You might be interested in
Which elements are more likely to lose electrons?<br> Ca, Li, F and Ne
Slav-nsk [51]
Ca, they only have two valence electrons, in order to become more stable, they would like to lose all of them
3 0
3 years ago
If 100cm3 of O2 diffused in 4s and 50cm3 of gas Y diffused in 3s. calculate the relative molecular mass of gas X (O=16).
sertanlavr [38]

Answer:

T2/T=√M1√M2

T2=3 T1=4 M1=O2=32

M2=?

4/2=√M2/√32

=1.3

Explanation:

8 0
3 years ago
Hello, Flashligh explain where the energy comes from and how it is affecting change or putting an object in motion
dangina [55]

Answer:

Our energy supply comes mainly from fossil fuels, with nuclear power and renewable sources rounding out the mix.

The energy associated with an object's motion is called kinetic energy. Kinetic energy is the energy of motion. All moving objects have kinetic energy

Explanation:

7 0
3 years ago
Read 2 more answers
The student who answers the riddle will get the prize ? underline pronoun<br>.​
mariarad [96]

answer:

the student <u>who</u> answers the riddle will get the prize

explanation:

  • who is the pronoun
  • a pronoun is something that substitutes for a noun
6 0
3 years ago
Read 2 more answers
#12 please! worth 40 points
Serga [27]
Okay so because of the difference in density a simple method for telling the difference between the two is to put a sample in a container with oil, because water has a higher density than the oil it would sink to the bottom but alcohol on the other hand is lighter than oil and would float on top of the oil.

However with this question I think that what you would do is use the ice to find out what the substance is, it would float on top of the liquid if it were water because the water is denser than ice but the ice would sink if it was alcohol because the alcohol is less dense than ice. 


I hope this helps you, good luck : )

3 0
3 years ago
Other questions:
  • What is water in a scientific knowledge​
    11·1 answer
  • Which of the following is an example of chemical weathering?
    8·2 answers
  • is anyone willing to help me finish the last 10 pages of a chemistry packet(grade 11)? can offer money
    15·1 answer
  • Are the electron geometries of water and ammonia similar?
    10·1 answer
  • I need help if anyone will help plz
    14·1 answer
  • The net ionic equation for the reaction of aluminum sulfate and sodium hydroxide
    14·1 answer
  • Which elements are both classified as metalloids?
    8·1 answer
  • Is this statement true or false?<br><br> Living things are classified by shared characteristics.
    9·1 answer
  • Describe the following properties of liquids with reference to
    12·1 answer
  • Which two substances are reactants in the following chemical equation?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!