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
AleksAgata [21]
3 years ago
14

Ag2O(s) → 2Ag(s) + ½ O2(g) ΔH° = 31.05 kJ Which statements concerning the reaction above are true? (1) heat is released (2) heat

is absorbed (3) reaction is exothermic (4) reaction is endothermic (5) products have higher enthalpy content than reactants (6) reactants have higher enthalpy content than products A) 1, 3, and 5 B) 1, 3, and 6 C) 2, 4, and 6 D) 2, 4, and 5
Chemistry
1 answer:
Sidana [21]3 years ago
5 0

Answer:

D) 2, 4, and 5

Explanation:

In order to fully comprehend the answer choices we must take a close look at the value of ΔH° = 31.05. The enthalpy change of the reaction is positive. A positive value of enthalpy of reaction implies that heat was absorbed in the course of the reaction.

If heat is absorbed in a reaction, that reaction is endothermic.

Since ∆Hreaction= ∆H products -∆H reactants, a positive value of ∆Hreaction implies that ∆Hproducts >∆Hreactants, hence the answer choice above.

You might be interested in
What happens to the radius of non metal atom when it forms an ion?
MArishka [77]
Decrease because loss of electrons.
8 0
2 years ago
Which of these is the best definition of a fuel cell?
oksian1 [2.3K]

Answer:

A voltaic cell that uses the oxidation of a fuel to produce electricity  

Explanation:

A fuel cell is a voltaic cell that converts the chemical energy of a fuel and an oxidizing agent into electricity.

A. is wrong. This definition is so broad that it could include a candle in a cup.

C is wrong. The batteries in flashlights and cell phones are not fuel cells.

 

3 0
3 years ago
What commercially available compound is used to generate cl2?
GuDViN [60]
<span>Bleach and ammonia can be used to make cl2. Bleach is commercially available and so people should be very careful during these experiments or even when mixing things in the household.</span>
6 0
3 years ago
Read 2 more answers
How many moles of potassium iodide (KI) are in 48.9 g of potassium iodide (KI) ? ____ moles
wel

Answer:

mass of kI = 74.55 Atomic mass

74.55 g ---> 1 mole

48.9 g --> ?

48.9 / 72

0.7 mole.

In one mole of kI --->

5 0
2 years ago
Rust results from iron’s reaction to oxygen. An iron nail gains mass when it rusts. How does this reaction support the law of co
Olegator [25]

Answer:

Option (A). The mass of the rusted nail equals the mass of iron and the oxygen from the air it reacted with to form the rust.

5 0
3 years ago
Other questions:
  • How many valence electrons does nickel (Ni) have?
    14·2 answers
  • What is formed from 2 pieces of different metals stuck together lengthwise?
    11·1 answer
  • What is clch2ch2ch2oh when oxidized?
    7·1 answer
  • 10 points
    10·1 answer
  • Hydrophobic compounds dissolve in
    11·1 answer
  • How does the structure of this umbrella relate to its function?
    15·1 answer
  • Deuterium is the isotope of hydrogen of mass number 2, with a proton and a neutron in its nucleus. The chemistry of deuterium is
    13·1 answer
  • Part 1: Name the type of chemical reaction that occurs when magnesium chloride
    10·1 answer
  • How many moles are in 12.9 grams of Fe?
    8·2 answers
  • Please help now!!! 20 braily points!!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!