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
podryga [215]
3 years ago
8

Hi there, I need help producing the aim and hypothesis for the question

Chemistry
1 answer:
svetlana [45]3 years ago
4 0

Answer:

in supernova gold can be turned into lead.

its practical to obtain gold from lead

hope this helps you☺️☺️

You might be interested in
exactly 5.00 L of air at -50.0 °C is warmed to 100.0 °C. What is the new volume if the pressure remains constant?
ollegr [7]

Answer:

V₂ = 8.36 L

Explanation:

Given data:

Initial volume of gas = 5.00 L

Initial temperature = -50.0°C (-50 + 273 = 223 k)

Final temperature = 100°C (100+273 = 373 k)

Final volume = ?

Solution:

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

V₂ = V₁T₂/T₁  

V₂ = 5.00 L × 373 K / 223 K

V₂ = 1865 L.K / 223 K

V₂ = 8.36 L

3 0
3 years ago
Which best explains why collective bargaining increases the bargaining power of workers?
m_a_m_a [10]
In the above question, options are not given so the answer has been generalized.

Collective bargaining power gives rights to the workers to put their demands in front of employer in a better way. It puts the workers and employers on the same level.
Collective bargaining increases the power of bargaining of workers. If the workers and employers have agreed on a collective bargaining on mandatory subjects then it is unfair for the employer to refuse. 
8 0
3 years ago
Read 2 more answers
Which of the following strategies can reduce urban sprawi?
nasty-shy [4]

Answer:

Preserving natural resources such as farmland, parks, open spaces and unused land is one way to reduce urban sprawl. Preserving the land keeps it as is. Thus, wildlife and animals aren't removed from their homes and forced closer to cities and suburbs

3 0
3 years ago
Does the energy in a solid increase or decrease when changing to a liquid?
vlabodo [156]

Answer:decreases

Explanation it takes energy from it to change

7 0
3 years ago
What is the boiling point elevation constant, Kb, of diethyl ether if 38.2 g of the nonelectrolyte benzophenone, C6H5COC6H5, dis
kakasveta [241]

Answer: the boiling point elevation constant is 1.73^0C/m

Explanation:

Elevation in boiling point is given by:

\Delta T_b=i\times K_b\times m

\Delta T_b=T_b-T_b^0= = Elevation in boling point

i= vant hoff factor = 1 (for non electrolyte)

K_b =boiling point constant = ?

m= molality

\Delta T_b=i\times K_b\times \frac{\text{mass of solute}}{\text{molar mass of solute}\times \text{weight of solvent in kg}}

Weight of solvent (diethylether)= 330 g = 0.33 kg

Molar mass of solute (benzophenone)= 182 g/mol

Mass of solute (benzophenone) = 38.2 g

(35.7-34.6)^0C=1\times K_b\times \frac{38.2g}{182g/mol\times 0.33kg}

K_b=1.73^0C/m

Thus the boiling point elevation constant is 1.73^0C/m

3 0
3 years ago
Other questions:
  • A solution is made by dissolving 4.35 g of glucose (C6H1206) in 25.0 mL of water at 25 °C.Calculate the molality of glucose in t
    9·1 answer
  • What happens after an excited electron jumps from a lower energy level to a higher energy level?
    8·2 answers
  • The conversion of co2 and h2o into organic compounds using energy from light is called what?your answer
    14·1 answer
  • 92 protons 143 neutrons and and atomic mass of 235 how many electrons does atom have
    10·1 answer
  • 24. What volume of a 0.0200M calcium hydroxide is required to neutralize 35.00 mL of 0.0500M nitric acid
    15·1 answer
  • Nervous System Freezes the Muscles:controls senses & most body functions .Carries message & information between the brai
    6·1 answer
  • Which of the following lab tools is used to measure liquid volume?
    14·1 answer
  • Please help me.<br> Thank you!
    11·2 answers
  • *30 points* Pls answer following the rules of :No files
    7·1 answer
  • Acidic oxides are common air pollutants and the source of acid precipitation. Basic oxides are not. Use what you know about thes
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!