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
Rama09 [41]
3 years ago
7

Срочноооооооооооооо!!!!

Chemistry
1 answer:
Ymorist [56]3 years ago
4 0

Answer:

I can't answer this as I am not able to read the Question

You might be interested in
Consider the following reaction at 298K.
lakkis [162]

The true statements are;

  • K < 0
  • Eocel  < 0

<h3>What is a redox reaction?</h3>

We define a redox reaction as one in which a specie is oxidized and another is reduced.

Now;

Eo cell = cell potential = -0.13 V - (+0.34 V) = -0.47 V

n =number of moles of electrons = 2 mole of electrons

K = equilibrium constant

ΔG = change in free energy

Eo cell = 0.0592/n log K

-0.47 =  0.0592/2 log K

log K =  -0.47  * 2/0.0592

K = 1.3 * 10^-16

ΔG = -nFEo cell

ΔG = -(2 * 96500 * -0.47)

ΔG = 90.7kJ

Learn more about Ecell:brainly.com/question/10203847

#SPJ1

8 0
2 years ago
How are protons, electrons, and neutrons correctly compared​
Fiesta28 [93]

they all have one thing in common and that its all made up of atoms. When these components are active it creates energy  

4 0
2 years ago
Name seven characteristics that can be used to define a mineral
PIT_PIT [208]
Solid
, Inorganic,
Naturally Orcurring,
Defintite
Chemical Compostion,
Definite Crystalline Structure

5 Physical Properties

Hardness,
Color,
Crystal Shape,
Streak
7 0
3 years ago
Consider the following reaction at equilibrium. 2CO2 (g) 2CO (g) + O2 (g) H° = -514 kJ Le Châtelier's principle predicts that th
tiny-mole [99]

Answer:

C. at low temperature and low pressure.

Explanation:

  • <em>Le Châtelier's principle </em><em>states that when there is an dynamic equilibrium, and this equilibrium is disturbed by an external factor, the equilibrium will be shifted in the direction that can cancel the effect of the external factor to reattain the equilibrium.</em>

<em />

  • For the reaction:

<em>2CO₂(g) ⇄ 2CO(g) + O₂(g), ΔH = -514 kJ.</em>

<em></em>

<em><u>Effect of pressure:</u></em>

  • When there is an increase in pressure, the equilibrium will shift towards the side with fewer moles of gas of the reaction. And when there is a decrease in pressure, the equilibrium will shift towards the side with more moles of gas of the reaction.
  • The reactants side (left) has 2.0 moles of gases and the products side (right) has 3.0 moles of gases.

<em>So, decreasing the pressure will shift the reaction to the side with higher no. of moles of gas (right side, products), </em><em>so the equilibrium partial pressure of CO (g) can be maximized at low pressure.</em>

<em></em>

<u><em>Effect of temperature:</em></u>

  • The reaction is exothermic because the sign of ΔH is (negative).
  • So, we can write the reaction as:

<em>2CO₂(g) ⇄ 2CO(g) + O₂(g) + heat.</em>

  • Decreasing the temperature will decrease the concentration of the products side, so the reaction will be shifted to the right side to suppress the decrease in the temperature, <em>so the equilibrium partial pressure of CO (g) can be maximized at low temperature.</em>

<em></em>

  • So, the right choice is:

<em>C. at low temperature and low pressure.</em>

<em></em>

7 0
3 years ago
A 0.75mol calcium carbonate (CaCO3) pellet has what mass?
aleksandr82 [10.1K]

Answer:

75 g  

Step-by-step explanation:

<em>Step 1. </em>Calculate the molar mass of CaCO₃

Ca                    =   40.08

  C                    =   12.01

3O = 3 × 16.00 = <u>  48.00 </u>

               Total = 100.09 g/mol

<em>Step 2</em>. Calculate the mass of the pellet

Mass of CaCO₃ = 0.75 mol × (100.09 g/1 mol)

Mass of CaCO₃ = 75 g

4 0
3 years ago
Other questions:
  • Which of the following statements is not correct?
    6·1 answer
  • How many grams of aluminum chloride are needed to react completely with 1.084g lithium sulfide?
    8·1 answer
  • An alpha particle is equivalent to a _____ nucleus.
    9·2 answers
  • Units of force are the ____ and the ____
    13·1 answer
  • What would the concentration be of a solution made
    8·1 answer
  • Magnesium and nitrogen react in a combination reaction to produce magnesium nitride. 3 mg + n2 ? mg3n2. in a particular experime
    5·1 answer
  • In ____________ reactions, certain molecules are broken down; in the process they release energy which is captured when high-ene
    6·1 answer
  • What is the speed of a wave with a wavelength of 3 m and a frequency of .1hz?
    5·1 answer
  • Help please ! ASAP neeeeeed and answerrrrrr
    10·2 answers
  • 15. conjugated dienes routinely undergo 1,2 and 1,4 addition reactions with a variety of electrophilic reagents; this suggests t
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!