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
Nataly [62]
3 years ago
7

HELLLLLLPPPPP

Chemistry
2 answers:
atroni [7]3 years ago
8 0

Answer:

An open series circuit

Explanation:

I'm late but for future people...

I took the test.

mars1129 [50]3 years ago
6 0

Answer:

a closed series circuit

You might be interested in
PLEASE HELP DUE IN 15!!!!!!!!!!!! WILL GIVE BRAINLIEST!!
maria [59]

Explanation:

n=,4.5 moles C2H6

the ratio 2:7

4.5:x

x=15.75 moles

4 0
2 years ago
7. A gas has a volume of 300 mL at 300 mm Hg. What will its volume be if the pressure is changed to 500 mm Hg?​
USPshnik [31]

Answer:

The volume is

<h2>180 mL</h2>

Explanation:

In order to solve for the volume we use the formula for Boyle's law which is

<h3>P _{1}  V _{1} = P _{2}V _{2}</h3>

where

P1 is the initial pressure

V1 is the initial volume

P2 is the final pressure

V2 is the final volume

Since we are finding the final volume we are finding V2

Making V2 the subject we have

<h3>V _{2}  = \frac{P _{1}  V _{1}}{P _{2}  }</h3>

From the question

P1 = 300 mmHg

V1 = 300 mL

P2 = 500 mmHg

Substitute the values into the above formula and solve for the final volume obtained

That's

<h3>V _{2} =  \frac{300 \times 300}{500}  \\  =  \frac{90000}{500}  \\  =  \frac{900}{5}</h3>

We have the final answer as

<h3>180 mL</h3>

Hope this helps you

7 0
4 years ago
Why does temperature stay constant during a phase change?
Serjik [45]
When a solid is heated , the average kinetic e energy of the substance increases because of which the temperature increases....this heat won’t affect the average kinetic energy of the substance. Since average kinetic energy will remain same during phase change , the temperature will remain same too.
***HOPE THIS HELP YOU***
4 0
3 years ago
Read 2 more answers
What is the balanced equation of Na2S+CuSO4=CuS+Na2SO4?​
lapo4ka [179]
What you were given is the balanced chemical equation
3 0
3 years ago
he rate constant of a certain reaction is known to obey the Arrhenius equation, and to have an activation energy . If the rate c
Leya [2.2K]

The question is incomplete, here is the complete question:

The rate constant of a certain reaction is known to obey the Arrhenius equation, and to have an activation energy Ea = 71.0 kJ/mol . If the rate constant of this reaction is 6.7 M^(-1)*s^(-1) at 244.0 degrees Celsius, what will the rate constant be at 324.0 degrees Celsius?

<u>Answer:</u> The rate constant at 324°C is 61.29M^{-1}s^{-1}

<u>Explanation:</u>

To calculate rate constant at two different temperatures of the reaction, we use Arrhenius equation, which is:

\ln(\frac{K_{324^oC}}{K_{244^oC}})=\frac{E_a}{R}[\frac{1}{T_1}-\frac{1}{T_2}]

where,

K_{244^oC} = equilibrium constant at 244°C = 6.7M^{-1}s^{-1}

K_{324^oC} = equilibrium constant at 324°C = ?

E_a = Activation energy = 71.0 kJ/mol = 71000 J/mol   (Conversion factor:  1 kJ = 1000 J)

R = Gas constant = 8.314 J/mol K

T_1 = initial temperature = 244^oC=[273+244]K=517K

T_2 = final temperature = 324^oC=[273+324]K=597K

Putting values in above equation, we get:

\ln(\frac{K_{324^oC}}{6.7})=\frac{71000J}{8.314J/mol.K}[\frac{1}{517}-\frac{1}{597}]\\\\K_{324^oC}=61.29M^{-1}s^{-1}

Hence, the rate constant at 324°C is 61.29M^{-1}s^{-1}

8 0
4 years ago
Other questions:
  • State is characterized by the lowest density of the three states
    7·1 answer
  • I just need an advantage of disadvantage of Geothermal energy. I just need an advantage of Biomass and disadvantages of Biomass
    8·1 answer
  • One liter equals the volume of a 10 cubic centimeters. True False
    9·2 answers
  • An Arrhenius base yields which ion as the only negative ion in an aqueous solution?
    14·1 answer
  • What is a chemical change??
    6·1 answer
  • Name two kinds of rocks formed by conduction of energy.
    7·1 answer
  • A gas expands from 2.5 L to 8.6 L at a constant temperature. If the initial pressure is 1.6 atm, what is the final pressure?
    9·1 answer
  • Empirical formula of c8h14
    15·1 answer
  • Tổng số hạt của nguyên tử X là 40 trong đó số hạt mang điện nhiều hơn số hạt E mang điện là 12.
    13·1 answer
  • Write TRUE if the statement is correct and FALSE if the statement is wrong.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!