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
Alinara [238K]
3 years ago
15

Audrey is driving 50 miles in 2 hours what is her average speed ?

Chemistry
1 answer:
LenaWriter [7]3 years ago
5 0
It depends on the unit though if its in miles per hour then you can simply divide 50 by 2
You might be interested in
Qu 4.
Anna11 [10]

Answer:

It's the second one down.

Explanation:

Gold

Mass 197

Number of Protons: 79

Number of Neutrons: 197 - 79 = 118

Number of electrons: = number of protons = 97

3 0
3 years ago
How do isotopes of an atom differ? how are they the same?
otez555 [7]

Answer: Isotopes of an atom are different because they have different atomic masses and different number of neutrons within their nucleus. They are the same since they will always have the same atomic number/number of protons in their nucleus.

Explanation:

5 0
3 years ago
The specific heat for liquid ethanol is 2.46 J/(g•°C). When 210 g of ethanol is cooled from
avanturin [10]

Answer:

a) heat it from 23.0 to 78.3

q = (50.0 g) (55.3 °C) (2.46 J/g·°C) =  

b) boil it at 78.3

(39.3 kJ/mol) (50.0 g / 46.0684 g/mol) =  

c) sum up the answers from the two calculations above. Be sure to change the J from the first calc into kJ

Explanation:

3 0
3 years ago
1S Called A simple machine that has a disc with a grooved rim to wind up asing is called When a fixed pulley and a movable nugnk
maxonik [38]

what is the question??

3 0
3 years ago
Read 2 more answers
Six moles of an ideal gas are in a cylinder fitted at one end with a movable piston. the initial temperature of the gas is 27.0c
Alla [95]

We have to know final temperature of the gas after it has done 2.40 X 10³ Joule of work.

The final temperature is: 75.11 °C.

The work done at constant pressure, W=nR(T₂-T₁)

n= number of moles of gases=6 (Given), R=Molar gas constant, T₂= Final temperature in Kelvin, T₁= Initial temperature in Kelvin =27°C or 300 K (Given).

W=2.4 × 10³ Joule (Given)

From the expression,

(T₂-T₁)=\frac{W}{nR}

(T₂-T₁)= \frac{2.40 X 10^{3} }{6 X 8.314}

(T₂-T₁)= 48.11

T₂=300+48.11=348.11 K= 75.11 °C

Final temperature is 75.11 °C.


6 0
3 years ago
Other questions:
  • What did ruthorford discover that thomson did not understand
    5·1 answer
  • A particular sample of air is 2.5% water vapor express the concentration of water vapor in parts per million
    6·1 answer
  • 30.0 ml of an hf solution were titrated with 22.15 ml of a 0.122 m koh solution to reach the equivalence point. what is the mola
    15·2 answers
  • Which of the following expressions best represents a second order rate law?
    8·1 answer
  • In comparison to an atom of F-19 in the ground state, an atom of C-12 in the ground state has(1) three fewer neutrons
    12·1 answer
  • Which reaction leads to the formation of a precipitate?
    14·2 answers
  • The Wolff-Kishner reaction involves the reaction of an aldehyde/ketone with hydrazine in the presence of KOH. The process is use
    10·1 answer
  • Hello this is my 3 attempt, please someone answer this i'm begging you.
    6·1 answer
  • If a scientist wants to make molecules move slower, what should they do? A. decrease their kinetic energy B. Transfer energy out
    15·2 answers
  • Which of the following is a unit of volume of solids?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!