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
Readme [11.4K]
3 years ago
8

Which statement concerning spontaneous chemical reactions is true?

Chemistry
1 answer:
Marina CMI [18]3 years ago
7 0
I believe the correct answer is b since a spontaneous reaction is self sufficient and should not need an ongoing out side source in order to proceed once it is started.  

a is false since some reactions that occur are relatively slow such as iron reacting with oxygen to make rust.

c is false since most reactions involve an energy change of some sort which is why we classify them as endothermic or exothermic.

d is false since catalysts help speed up reactions but do not really affect a the Gibbs free energy value which determines the spontaneity of the reaction.
You might be interested in
Which phrases describe sedimentary rock? check all that apply.​
yuradex [85]

Answer:

Sedimentary rock, rock formed at or near Earth's surface by the accumulation and lithification of sediment by the precipitation from solution at normal surface temperatures

Explanation:

7 0
2 years ago
Speed is the rate of change of position expressed as _____ traveled per unit of time. A. direction B. meter C. displacement D. d
STatiana [176]

Answer:

Distance

Explanation:

7 0
3 years ago
What systems are working during the process of respiration?
Natali5045456 [20]

respiratory and lymphatic

3 0
3 years ago
What mass of silver ag which has an atomic mass of 107.87 amu contains the same number of atoms contained in 10.0g of boron b wh
Masteriza [31]

To contain the same number of atoms also mean to contain the same number of moles. So let us say that X is the mass of Silver Ag required, so that:

X / 107.87 = 10 / 10.81

<span>X = 99.79 g</span>

6 0
3 years ago
Read 2 more answers
Metallic copper is formed when aluminum reacts with copper(II) sulfate according to the
katovenus [111]

Answer: Given the equation for reaction is

2 A l +C u S O 4 → A l 2 ( S O 4 ) 3 + 3 C u .

Explanation:

3 0
2 years ago
Other questions:
  • If you exhale 7.25×10 to the 24th power molecules of CO2. How many moles of CO3 do you exhale?
    7·1 answer
  • Research how different fossil fuels compare in terms of the amount of carbon dioxide released per kWh of energy. How much carbon
    6·1 answer
  • What is copper sulfate?
    13·1 answer
  • How to find the concentration and equilibrium and the pH for a acid solution when you have 0.20M and the Ka
    11·1 answer
  • 12. Which rational number is least?<br>A<br>B<br>C<br>D<br>0.66<br>- 4<br>-<br>-0.6​
    5·1 answer
  • What is the chemical formula for the compound formed between rubidium and iodine?
    14·1 answer
  • Help me fthffvghjhoun
    5·2 answers
  • Find the number of cations present in 7g of sodium prosphate Na=23 g/mol O=16g/mol P=31g/mol​
    11·1 answer
  • What is Metallic bond
    13·2 answers
  • Part c
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!