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
Dmitry_Shevchenko [17]
3 years ago
9

Does a physical change form a new substance

Chemistry
1 answer:
beks73 [17]3 years ago
4 0

Answer:

No. No new substance is formed during Physical change.

You might be interested in
Which process is endothermic?a)b)c)d)The evaporation of water from the skin.The burning of candle wax.The oxidation of iron in a
BlackZzzverrR [31]

Answer:

The answer is option a. The evaporation of water from the skin

Explanation:

An endothermic reaction is any synthetic reaction that retains heat from its environment. The ingested energy gives the enactment energy to the reaction to happen.

No new bonds formed, no bonds broken in this example. water molecules go from liquid to vapour (gas ), intermolecular bond exist between polar (-OH) molecules and energy is required to break these bonds during the change from liquid to gas. So, it is endothermic .

Remaining three above examples are exothermic. combustion of gas releases energy(exothermic). burninig of the candle exothermic because the energy released from the oxygen into carbon dioxide and water.oxidation of iron also exothermic

6 0
3 years ago
A structural model of retinol is shown below. How many hydrogen atoms are
Nikitich [7]

Answer:

A. 30

Explanation:

Retinol is the chemical form of Vitamin A. It has a chemical formula of C20H30O.

It is processed when retinyl palmitate is broken down in the small intestine. Retinol helps in the proper regulation of eye cells hence a vital component in ensuring good eye sight.

It also helps in the neutralization of free radicals in the body and acts as an antioxidant which prevents cells of the body from ageing.

7 0
3 years ago
Why has nuclear fusion been difficult to develop?
Alex73 [517]

Answer:

C. It is hard to recreate the extremely high temperatures and pressures found inside stars.

Explanation:

Nuclear fusion occurs when atomic nuclei are forcefully combined to create a new atomic nuclei or subatomic particles. In nature, this process takes place in our Sun and other stars. Within stars, extremely high temperatures and pressures are achieved and cause nuclear fusion to occur. Humans have not yet been successful in recreating the environment necessary to mimic this process.

8 0
2 years ago
How many molecules are in 4.08 moles of CCL4
Likurg_2 [28]
Hkaiwjebebsjakwbwhuwbs hsubshwiwknwhdudie hxjdinejdjdjdjdjdjdje
5 0
3 years ago
How does a sex cell differ from a body cell
Delvig [45]

Sex cells have one set of chromosomes; body cells have two.

I hope this helps you.

5 0
3 years ago
Other questions:
  • What is the pH of a 0.025 M [OH] solution?
    14·1 answer
  • Why is the following molecule nonpolar and hydrophobic?
    12·1 answer
  • In terms of collisions between particles why does the light begin shining brightly and dum overtime
    12·1 answer
  • Bob just filled his car's gas tank with 20 gallons of gasohol, a mixture consisting of 5% ethanol and 95% gasoline. If his car r
    13·1 answer
  • NEED HELP QUICKLY!!! How many moles are in each of the following?
    12·1 answer
  • Cost of production reports can also be used to compare the materials output quantity to the a.administrative staff input quantit
    10·1 answer
  • In 1901, Thomas Edison invented the nickel-iron battery. The following reaction takes place in the battery. Fe(s) + 2 NiO(OH)(s)
    14·1 answer
  • The number of moles in 2.93 g of Li2O in corrext sig figs​
    10·2 answers
  • Find the mole fraction of benzene and toluene in solution containing​
    9·1 answer
  • 2.50 grams F2= _____ grams of F2
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!