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
damaskus [11]
3 years ago
5

a metal melts at 450°c.is this property of the metal classified as chemical or physical ?explain your choice

Chemistry
1 answer:
avanturin [10]3 years ago
3 0
Chemical properties describe how things undergo chemical reactions, while physical properties describe how things behave when they're not undergoing reactions.

In the case of melting a metal, the melted metal continues to be the same material - just in a liquid rather than a solid form.  As a result, melting (and all phase changes, for that matter) is a physical change and the ability of the metal to melt at 450 degrees is a physical property.
You might be interested in
What is the theoretical yield of a reaction?
mestny [16]
I think it's D, because theoretical yield is like, the yield you'd get if 100% of the reactants formed to make product. Well that's how I think of it, but it has something to do with limiting reagents and stuff. Sorry this isn't a really detailed explanation.
4 0
3 years ago
38 points!! >:D
Sav [38]

Answer: which*

Explanation:

8 0
3 years ago
Read 2 more answers
What is the mass of 0.60 moles of Al
KIM [24]

16 g. The mass of 0.60 mol Al is 16 g.

Molar mass of Al = 26.98 g/mol

Mass of Al = 0.60 mol Al x (26.98 g Al/1 mol Al) = 16 g Al

6 0
3 years ago
Read 2 more answers
- Unit 1 Worksheet 4
3241004551 [841]
I think it is C or F
4 0
3 years ago
Use the normal boiling points: propane, C3H8, –42.1˚C; butane, C4H10, –0.5˚C; pentane, C5H12, 36.1˚C; hexane, C6H14, 68.7˚C; hep
svlad2 [7]

Answer:

The answer to your question is 126.1°C

Explanation:

                  Boiling point         Difference of boiling points  

C₃H₈             - 42.1°C

C₄H₁₀             -   0.5°C                 41.6 °C

C₅H₁₂               36.1°C                  36.6°C                       41.6 - 36.6 = 5°C          

C₆H₁₄               68.7°C                 32.6°C                        36.6 - 32.6 =4°C

C₇H₁₆               98.4°C                 29.7°C                        32.6 - 29.7 = 2.9°C

We can observe on the table that the difference of boiling points diminishes 1°C when the hydrocarbon has one more carbon, then the difference of temperature between the hydrocarbon of 8 carbons and the hydrocarbon of 7 carbons must be 2°C.

So, this difference is 29.7°C - 2°C = 27.7°C.

And the boiling point of octane is approximately 98.4 + 27.7°C = 126.1°C

7 0
3 years ago
Other questions:
  • What type of molecule polarity exists in NH3, H2O, and HF ?
    6·1 answer
  • Ammonia (NH3) breaks down into nitrogen and water by: 4NH3 + 3O2 > 2N2 + 6H2O. How many miles of water will be produced if 12
    8·1 answer
  • What is the most important simlarity between rusting and burning?
    12·1 answer
  • PLEASE ANSWER QUICK. Place in order from simplest (top) to most complex (bottom).
    7·1 answer
  • Is anyone good at chemistry if so can someone help me please ?<br><br> (NO LINKS)
    7·1 answer
  • PLEASE PLEASE HELP ME!! I WILL BRAINLIST YOU!! A 28.0 g sample of N2 is in a rigid 4.50 L container at 32 °C. Calculate the pres
    7·1 answer
  • When 29 grams of sodium metal (Na) react with 49 grams of chlorine gas (C1), solid
    11·1 answer
  • which of the following requires the most energy to break a bond? a. breaking cl-br bond. b. breaking a n-p bond. c. breaking a o
    6·1 answer
  • Which element has seven energy levels?
    9·1 answer
  • FeS + ….HNO3 …….……..+ ….H2SO4 + ….NO + ……….
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!