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
Llana [10]
3 years ago
8

A car drives on a road at a constant speed of 50 miles/hour.

Chemistry
1 answer:
Crank3 years ago
5 0

Answer:

It will take the police car 3.5 hours to travel a distance of 175 miles traveling at a rate of 50 miles/hour.

Explanation:

You might be interested in
The pressure of a 1-L nitrogen gas sample at 25 ⁰C is 0.30 atm. The pressure of a 1-L oxygen gas sample at the same temperature
ki77a [65]

Answer:

Nitrogen = 0.3 atm

Oxygen = 0.25 atm

Argon  = 0.45 atm

Explanation:

According to Dalton's law of partial pressure, the total pressure in the container is equal to sum of the partial pressures of the individual gases.

Given;

Total pressure of the gases, P_total = 1 atm

Pressure of nitrogen, P_nitrogen = 0.3 atm

Pressure of oxygen, P_oxygen = 0.25 atm

Pressure of argon, P_argon = ?

P_{total} = P_{nitrogen} + P_{oxygen} + P_{argon}\\\\1 \ atm= 0.3 \ atm + 0.25 \ atm + P_{argon}\\\\1 \ atm= 0.55 \ atm +  P_{argon}\\\\ P_{argon} = 1 \ atm - 0.55 \ atm\\\\ P_{argon} = 0.45 \ atm

Therefore, the contribution of each gas to the total pressure of the gas mixture is;

Nitrogen = 0.3 atm

Oxygen = 0.25 atm

Argon  = 0.45 atm

8 0
3 years ago
CAN HF USED TO CLEAVE ETHERS EXPLAIN
PilotLPTM [1.2K]

Answer:

no

Explanation:

Fluoride is not nucleophilic (having the tendency to donate electrons) enough to allow for the use of HF to cleave ethers in protic media(protic solvents are polar liquid compounds that have dissociable hydrogen atoms). The rate of reaction is comparably low, so that heating of the reaction mixture is required.

4 0
3 years ago
1.
zysi [14]
A. No need technique
5 0
4 years ago
How can a mixture of ammonia and hydrogen be seperated?
ICE Princess25 [194]
<span>The ammonia molecules have weaker inter molecular bonds then the hydrogen and nitrogen, this means that the ammonia condensed at a lower temperature so will be a liquid that will be separated from the reaction, while the nitrogen and hydrogen remain as gases so are easy are recycle back into the reacting chamber.</span>
4 0
3 years ago
Read 2 more answers
How much heat is released when 27.6 g P C l subscript 3 cools from 83.1 °C to 55.6 °C? (The specific heat of P C l subscript 3 i
Paul [167]

Answer: Thus 663 J of heat  is released when 27.6 g PCl_3 cools from 83.1 °C to 55.6 °C

Explanation:

The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.

Q=m\times c\times \Delta T

Q = Heat released = ?

m = mass of substance = 27.6 g

C = specific heat capacity = 0.874J/g^0C

Initial temperature= T_i = 83.1^0C

Final temperature  = T_f  = 55.6^0c

Change in temperature ,\Delta T=T_f-T_i=(55.6-83.1)^0C=-27.5^0C

Putting in the values, we get:

Q=27.6g\times 0.874J/g^0C\times -27.5^0C=-663J

As the value of q is negative, it means the heat has been released and it is 663J

7 0
3 years ago
Other questions:
  • This element is used to improve the conductivity of germanium.
    13·1 answer
  • How do the forces affect men
    7·1 answer
  • We apply the same amount of energy to 10.0-g samples of aluminum, iron, and silver which begin at the same temperature.
    8·1 answer
  • Select the statement that describes the relationship between the rate of a reaction and the length of time needed to produce a g
    7·2 answers
  • What evidence is there that indicates ink is a mixture?
    12·2 answers
  • Each of the three known isotopes of hydrogen has blank protons in the nucleus
    15·1 answer
  • Bunyi pancasila, sila ke lima​
    10·1 answer
  • 1. How would you describe what red cabbage juice is?*
    13·1 answer
  • the reaction of zinc with copper surface is exothermic. how can you tell from the students results that the reaction is exotherm
    11·1 answer
  • If the concentration of a dilute solution of nitric acid is 0. 0001 m. What is the ph of that solution?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!