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
Yanka [14]
3 years ago
10

Physical properties are :

Chemistry
1 answer:
elena-14-01-66 [18.8K]3 years ago
5 0
A. properties which can be observed since it's what you're physically viewing
You might be interested in
¿Qué puedes hacer para tratar de recuperar la mayor cantidad de agua de lluvia y qué uso doméstico le puedes dar?
Iteru [2.4K]

PLEASE POST YOUR QUESTIONS IN ENGLISH, ANYONE CAN REPORT YOU FOR DOING THIS BE CAREFULL

5 0
3 years ago
What determines a single inherited trait of an indiviual ?
joja [24]

Answer:

The answer is A.

The pair of genes from the parent determines what trait the offspring inherits.

4 0
3 years ago
Read 2 more answers
(b) Use the first law of thermodynamic to calculate AU for the following situations: (i) A coiled spring unwinds producing 153 J
il63 [147K]

Answer:

(i) ΔU = 116 J

(ii) ΔU = 289 J

(iii) ΔU = 1 KJ

(iv) ΔU = 0 J

(v) ΔU = 3.25 KJ

Explanation:

first law:

  • ΔU = Q + W

(i) W = 153 J;  Q = - 37 J ( Q ( - ), losing friction )

⇒ ΔU = 153 - 37 = 116 J

(ii) W = 289 J; Q = 0 ( insulated)

⇒ ΔU = W = 289 J

(iii) Q = 1 KJ , W = 0 ( isovolumetric process)

⇒ ΔU = Q = 1 KJ

(iv) isothermal ( constant temperature )

  • ΔU = Cv * ΔT

∴ ΔT = 0° ( isothermal )

⇒ ΔU = 0 J

(v) isobaric ( constant pressure )

⇒ ΔU = Q + W

∴ Q = 15.6 KJ

∴ W = - ∫ P dV = - P ΔV;  W (-) the system performs a job and the volume increases

.

∴ P = 950 KPa * ( 1000 Pa / KPa ) = 950000 Pa = 950000 J/m³

∴ ΔV = 18 - 5 = 13 L * ( m³ / 1000 L ) = 0.013 m³

⇒ W = - ( 950000 J/m³) * ( 0.013 m³ ) = - 12350 J ( - 12.35 KJ )

⇒ ΔU = 15.6 KJ + ( - 12.35 KJ )

⇒ ΔU = 3.25 KJ

7 0
3 years ago
What is electron affinity? A. the energy change that happens when a neutral atom gains an electron B. the energy change that hap
lidiya [134]
Your answer is most likely:
A.
7 0
3 years ago
Read 2 more answers
Find the molar mass of KC1
leonid [27]
M_{KCl} = M_{K}+M_{Cl}=39.0983\frac{g}{mol}+35.453\frac{g}{mol}=74.5513\frac{g}{mol}
7 0
3 years ago
Other questions:
  • Which best compares 1 mol of sodium chloride to 1 mol of aluminum chloride?
    10·1 answer
  • Which important change in electronic devices, such as televisions and computers, is a result of the use of metalloids as semicon
    7·2 answers
  • What is the reasoning for the location of sodium in the periodic table
    11·2 answers
  • During the processes of erosion and deposition, sediments that are the ________ in size will be carried the greatest distances b
    6·2 answers
  • 9. In the reaction of sodium hydroxide with chlorine gas, sodium chloride, sodium hypochlorite, and water a
    11·1 answer
  • If the amount of dissolved solute in a solution at a given temperature is greater than the amount that can permanently remain in
    8·1 answer
  • What is the freezing point (in degrees Celcius) of 4.14 kg of water if it contains 235.1 g of butanol, C 4 H 9 O H
    13·1 answer
  • If the pressure of a 2.00 L sample of gas is 50.0 kPa, what pressure does the gas exert if its volume is decreased to 20.0 mL?
    9·1 answer
  • How much more would a 20.0 gallon tank for propane
    10·1 answer
  • What is the product of the unbalanced combustion reaction below?<br> C3H8(g) + O₂(g)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!