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
nalin [4]
3 years ago
14

The Group 1B metals, Cu, Ag, and Au, are called coinage metals. What chemical properties make them especially suitable for makin

g coins and jewelry?
Chemistry
1 answer:
notka56 [123]3 years ago
4 0

Answer:

Explanation:

Coinage metals -

The group 11 elements , i.e. , Copper , Silver , Gold are called the coinage metals .

These metals are quite soft and can be easily molded to form coins . This property is called as the property of malleability .

And due its soft nature , it can easily be used to make jewelry ,

Since , making jewels require the metal to be soft and flexible ,

Hence , gold is suited the best for this .

You might be interested in
If a bug is traveling 5 meters across the floor in 5 seconds. How fast did it<br> travel?
Sergio039 [100]

Answer:

5 seconds

Explanation:

Speed x Time. So t=ds. t=51=5.

4 0
2 years ago
The absorbance (????)(A) of a solution is defined as ????=log10(????0????) A=log10⁡(I0I) where ????0I0 is the incident‑light int
bulgar [2K]

Answer:

The absorbance of the myoglobin solution across a 1 cm path is 0.84.

Explanation:

Beer-Lambert's law :

Formula used :

A=\epsilon \times c\times l

A=\log \frac{I_o}{I}

\log \frac{I_o}{I}=\epsilon \times c\times l

where,

A = absorbance of solution

c = concentration of solution

\epsilon = Molar absorption coefficient

l = path length

I_o = incident light

I = transmitted light

Given :

l = 1 cm, c = 1 mg/mL ,\epsilon = 15,000 M^{-1}cm^{-1}

Molar mass of myoglobin = 17.8 kDa = 17.8 kg/mol=17800 g/mol

(1 Da = 1 g/mol)

c = 1 mg /mL = {1mg /mL}{\text{Molar mass of myoglobin}}

c = \frac{1 mg/mL}{ 17800 g/mol} = 5.6179\times 10^{-5} mol/L

1 mg = 0.001 g, 1 mL = 0.001 L

A= 15,000 M^{-1}cm^{-1}\times 5.6179\times 10^{-5} mol/L\times 1 cm

A=0.8426 \approx 0.84

The absorbance of the myoglobin solution across a 1 cm path is 0.84.

5 0
3 years ago
HELP WITH SCIENCE PLEASE, ASAP!!!!!!!!!<br> (you get 25 points)
Aliun [14]
The answer is the 3rd one
8 0
3 years ago
Read 2 more answers
Write balanced molecular equation for the reaction between nitric acid and calcium hydroxide.
serg [7]
2HNO3 + Ca(OH)2 --> 2HOH + Ca(NO3)2

7 0
3 years ago
50 compounds in chemistry<br>​
Lana71 [14]

Answer:

\Large \boxed{\mathrm{view \ explanation}}

Explanation:

Chemical compounds are substances that contain two or more elements that are chemically bonded together.

Here are 50 chemical compounds:

  1. Hydrogen peroxide
  2. Fructose
  3. Sulfur hexafluoride
  4. Glucose
  5. Sulfuric acid
  6. Calcium nitrate
  7. Nitrous oxide
  8. Calcium sulfate
  9. Ammonia
  10. Hydrochloric acid
  11. Potassium nitrate
  12. Potassium nitrite
  13. Sucrose
  14. Methane
  15. Carbon dioxide
  16. Dihydrogen oxide
  17. Putrescine
  18. Chloroform
  19. Ethene
  20. Hydrazine
  21. Sodium bicarbonate
  22. Sodium chloride
  23. Acetate
  24. Magnesium sulfate
  25. Urethane
  26. Butyne
  27. Nicotine
  28. Maltose
  29. Propene
  30. Tartaric acid
  31. Nitrogen dioxide
  32. Butane
  33. Butene
  34. Propane
  35. Pentane
  36. Hexane
  37. Benzene
  38. Isobutane
  39. Ovalene
  40. Coronene
  41. Pyrene
  42. Chrysene
  43. Napthalene
  44. Acetic acid
  45. Barium iodide
  46. Aluminium oxide
  47. Aluminium fluoride
  48. Styrene
  49. Toluene
  50. Vinyl chloride
5 0
2 years ago
Other questions:
  • Of all the alcohol sources, ______ often is singled out as the best choice because of the added bonus of the many phytochemicals
    13·2 answers
  • Compare blue and violet light. which one has the highest energy?<br> Longest wavelength?
    13·1 answer
  • I will brainly <br> And 5 star rate
    13·2 answers
  • What nation has attempted to drill through Earth's crust?
    14·1 answer
  • Have a wonderful day folks and finish off the school year strong
    7·2 answers
  • Which reason best explains why plasmas are good conductors of electricity? They have mobile charged particles. They are at extre
    7·2 answers
  • What is the mole fraction of NaBr in
    6·1 answer
  • The shape of the illuminated portion of the Moon as seen by an observer, usually on Earth:
    13·1 answer
  • In 1774, Joseph Priestly discovered oxygen gas by heating mercury(II) oxide powder with focused sunlight through a lens. How man
    7·1 answer
  • 8
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!