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
Dimas [21]
2 years ago
8

"Select True or False: The following data for the reaction: A(g) + 2B(s) === AB2(g) provides evidence that the reaction is exoth

ermic.Table: Temp (K) K(c)300. 1.5 x 10^4600 55900. 3.4 x 10^-3.a) True b) False"This would be true because as we are increasing T, the K value is decreasing, which indicates that we are favoring the reactants; therefore, heat is a product, which means it is exothermic.
Chemistry
1 answer:
galina1969 [7]2 years ago
7 0

The reaction as shown is known to be an exothermic reaction.

<h2>Endothermic and exothermic reaction:</h2>

Depending on the temperature of the reaction vessel after reaction, the reaction could be classified as;

  • Endothermic
  • Exothermic

In an endothermic reaction, heat is absorbed and the rate of reaction increasing with increase in temperature while in an exothermic reaction, the rate of reaction decreases with increase in temperature.

Hence, the correct statements are;

  • The reaction is an exothermic reaction.
  • The value of K decreases as the value of T increases.

Learn more about exothermic reaction: brainly.com/question/14969584

You might be interested in
An ________ is the smallest unit of matter that cannot be broken down chemically into simpler substances.
elena-14-01-66 [18.8K]
The answer is atom because it cannot be broken down into small substances
3 0
3 years ago
Help me with my work please
blsea [12.9K]

Answer:

i am pretty sure it is compound

8 0
3 years ago
What is the number of the lowest energy level that contains an f sublevel?
forsale [732]

Answer: n = 4.


Explanation:


1) The main energy level is represented by the principal (main) quantum number, n. It can be 1, 2, 3, 4, 5,6, or 7. It is the period number in the periodic table.


2) The next quantum number is the Azimuthal quantum number (ℓ), also known as angular quantum number. It indicates the subshell (sublevel) or type of orbital.


This quantun number may be:


s, p, d, or f.


3) For n = 1, there is only one ℓ number: 0; which is the orbital s


For n = 2, there are two possible ℓ numbers: 0 and 1; which are the orbitals s and p.


For n = 3, there are three possible ℓ numbers: 0, 1, and 2, which are the orbitals s, p, and d:


For n = 4, there are four possible ℓ numbers:0, 1, 2, and 3; which are the orbitals s, p, d, and f.


So, the f sublevel appears first time when n = 4, i.e the number of the lowest energy level that contains an f sublevel is 4.

5 0
3 years ago
PLZZZZZZZZZZZZZZZZZZ15. As much as 90 percent of the oxygen in our atmosphere is the result of
vladimir2022 [97]

Answer:

The correct answer is - option D. photosynthesis.

Explanation:

It is shown by the study that most of the atmospheric oxygen comes from the photosynthesis by plants as oxygen is the byproduct of the photosynthesis. Photosynthesis is the process that uses light energy, carbon dioxide, and water to produce food or glucose/sugar and release oxygen as the byproduct.

Many scientists believe that oceanic phytoplankton that releases oxygen by the photosynthesis process makes 80 to 85% of the total oxygen of the atmospheric oxygen.

7 0
3 years ago
Read 2 more answers
Yo I need help with 1 and 2
nikitadnepr [17]

Answer:

1-

A) H2O        B) HCO3-

2-

A) NH3         B) SO3-2

Explanation:

8 0
3 years ago
Other questions:
  • A typical aspirin tablet contains 327 mg of acetylsalicylic acid, HC9H7O4. Calculate the pH of a solution that is prepared by di
    9·1 answer
  • Name two elements in which the last electrons to be added are placed into s subshells
    5·1 answer
  • Calcium Oxide is used to remove pollutant SO2 from smokestack gases. The ΔG° of the overall reaction is -418.6 kJ. What is PSO2
    7·1 answer
  • An ethylene glycol solution contains 21.4 g of ethylene glycol (C2H6O2) in 97.6 mL of water. (Assume a density of 1.00 g/mL for
    7·1 answer
  • Amorphous solids do not possess overall order, with individual clusters held together only by Van der Waals forces.
    8·2 answers
  • A 250 ml flask and stopper have a mass of 110.525 g. A 50 ml sample of gasoline is pipetted into the flask, giving a total mass
    5·2 answers
  • In the galvanic cell Al(s) ǀ Al3+(aq, 1 M) ǀǀ Cu2+(aq, 1 M) ǀ Cu(s) which of the following changes will increase the cell potent
    14·2 answers
  • Two different isotopes of an element have different?
    8·1 answer
  • What are the advantages of using resources such as geothermal energy, solar energy, and hydropower?
    13·1 answer
  • Find the molarity of a solution made by dissolving 12.5 g sodium carbonate in 500.0 mL total solution
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!