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
Firdavs [7]
3 years ago
5

Please answer as many as you can I need the help

Chemistry
1 answer:
Ksivusya [100]3 years ago
8 0
6. Cesium and francium.
You might be interested in
The decomposition reaction of N2O5 in carbon tetrachloride is 2N2O5−→−4NO2+O2. The rate law is first order in N2O5. At 64 °C the
Mademuasel [1]

Answer:

(a) rate =  4.82 x 10⁻³s⁻¹  [N2O5]

(b) rate =   1.16 x 10⁻⁴  M/s

(c) rate =   2.32 x 10⁻⁴ M/s

(d) rate =   5.80 x 10⁻⁵ M/s

Explanation:  

We are told the rate law is first order in N₂O₅, and its rate constant is 4.82 x 10⁻³s⁻¹ . This means the rate is proportional to the molar concentration   of   N₂O₅, so

(a) rate = k [N2O5] = 4.82 x 10⁻³s⁻¹ x [N2O5]

(b) rate = 4.82×10⁻³s⁻¹  x 0.0240 M =  1.16 x 10⁻⁴ M/s

(c) Since the reaction is first order if the concentration of  N₂O₅ is double the rate will double too:  2 x   1.16 x 10⁻⁴ M/s = 2.32 x 10⁻⁴ M/s

(d) Again since the reaction is halved to 0.0120 M, the rate will be halved to

1.16 x 10⁻⁴ M/s / 2 =  5.80 x 10⁻⁵ M/s

3 0
3 years ago
Read 2 more answers
If boron atoms have 5 electrons, how many electrons are in the outer electron shell of a boron atom?
ANEK [815]

Answer:

3

Explanation:

The first election shell can only hold 2 electrons, but the next one can hold up to 8

3 0
2 years ago
I have an important test coming up!!! i need help with thisss!!!!
Aleks [24]
I think it’s A because each unit is worth 3
7 0
3 years ago
Read 2 more answers
Advertising claims sometimes state that adding something mechanical to a car's engine will allow it to recover 100 percent of th
Elan Coil [88]

Answer:

second law of thermodynamics.

Explanation:

The second law of thermodynamics deals with interconversion of energy from one form to another. Although energy can be converted from one form to another, this conversion is never 100% efficient because energy is lost in certain ways such as through heat. In a combustion engine, it is not possible to recover the energy from the gasoline 100% since energy must be lost along the way via such means as heat losses. Hence I will be skeptical about such an advert.

4 0
3 years ago
How many grams of co2 is produced when oxygen reacts with carbon?
Serggg [28]
44g of CO2 can produce by the reaction of carbon with oxygen
5 0
3 years ago
Other questions:
  • I need to know how to solve this entire thing I don’t know where to start
    14·1 answer
  • What gives elements in a family or group similar properties?
    6·2 answers
  • List two things that do not change between isotopes of an element
    14·2 answers
  • Which of the following temperature is the coldest:
    8·2 answers
  • An element has atomic number 10 and an atomic mass of 20. How many neutrons are in the atom of this element?
    14·1 answer
  • Given the amount of solute in grams and the volume of the solution in milliliters, how would you go about calculating the molari
    15·1 answer
  • (1) Complete the word equation for the complete combustion of methane in
    11·1 answer
  • In which layer of the atmosphere can you find meteors?
    6·1 answer
  • Help me for brainlest and 100 point
    7·2 answers
  • If the [H3O+] of a solution is less than the [OH-], what can be said about the solution?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!