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
nikklg [1K]
3 years ago
11

Explain why decomposition of sugar on heating is an irreversible change.

Chemistry
1 answer:
Elena L [17]3 years ago
5 0

Sugar, sucrose (C12H22O11: a disaccharide, composed of the two monosaccharides: glucose and fructose), is odorless, that is, it lacks odor. When heated a phase change occurs resulting in melting of a thick syrup.

You might be interested in
Determine whether you can swim in 1.00 x 10^27 molecules of water.​
zloy xaker [14]

Answer:

We can not swim in 1.00 × 10²⁷ molecules of water

Explanation:

The given number of molecules of water = 1.00 × 10²⁷ molecules

The Avogadro's number, N_A, gives the number of molecules in one mole of a substance

N_A ≈ 6.0221409 × 10²³ molecules/mol

Therefore

Therefore, we have;

The number of moles of water present in 1.00 × 10²⁷ molecules, n = (The number of molecules of water) ÷ N_A

∴ n = (1.00 × 10²⁷ molecules)/(6.0221409 × 10²³ molecules/mol) = 1,660.53902857 moles

The mass of one mole of water = The molar mass of water = 18.01528 g/mol

The mass, 'm', of water in 1,660.53902857 moles of water is given as follows;

Mass = (The number of moles of the substance) × (The molar mass of the substance)

∴ The mass of the water in the given quantity of water, m = 1,660.53902857 moles × 18.01528 g/mol ≈ 29.9150756 kg.

The density pf water, ρ = 997 kg/m³

Volume = Mass/Density

∴ The volume of the water present in the given quantity of water, v = 29.9150756 kg/(997 kg/m³) ≈ 30.0050909 liters

The volume of the water present in 1.00 × 10²⁷ molecules of water ≈ 30.0 liters

The average volume of a human body = 62 liters

Therefore, we can not swim in the given quantity of 1.00 × 10²⁷ molecules = 30.0 liters water

7 0
3 years ago
When the valves are opened and the gases are allowed to mix at a constant temperature, what is the distribution of atoms in each
jek_recluse [69]

Answer:

Equal number of atoms of each gas in each container

Explanation:

When the valves opened, the two contaienrs become one and the gases beging to mix by diffusion. This phenomenom is produced by the differeces of concentration of a gas between two points of the container.

The gases will continue diffunding util their concentration in both containers are equal.

7 0
3 years ago
Which of the following is required to change the state of matter?
nignag [31]
Since there are no given items, I will give a general answer. Energy....or the lack of it. Examples: Heat, electricity, force (when an item is moving and it impacts something, it heats up...friction is an example of this), etc
3 0
3 years ago
Read 2 more answers
Both the National Fire Academy and Iowa formulas calculate the flow requirement for structures that are __________ percent invol
emmainna [20.7K]

Answer:

100

Explanation:

7 0
2 years ago
A. O CN<br> B. O NH4+<br> C. O s2-<br> D. O Cro 2-<br> Which of the following is an oxyanion?
ANEK [815]
C i think i got this off of usa test prep in class
5 0
3 years ago
Other questions:
  • 78.2 divided by 32cm³<br><br><br>​
    7·2 answers
  • How many calories are required to raise the temperature of 105 g of water from 30.0°c to 70.0°c?
    15·1 answer
  • Hello<br>Thank you for not answering my question
    5·1 answer
  • What is the half-life of sodium-25 if 1.00 gram of a 16.00-gram sample of sodium-25 remains unchanged after 237 seconds?
    10·1 answer
  • Number of electrons the atom my accept from another atom?
    13·1 answer
  • Type your answer in decimal form. Do not round.<br> 2/5 tons = pounds
    6·2 answers
  • NO ONE ANSWERS MY QUESTIONS
    7·1 answer
  • By what process does water vapor become a cloud?
    11·2 answers
  • PLEASE HELP!!!
    8·1 answer
  • Need help answering this question
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!