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
How many molecules are contained in 125 grams of water, H20?
sergejj [24]
Answer:

18,01528

Explanation:
8 0
2 years ago
Read 2 more answers
Which is more dense? A foam ball or a bowling ball?
STatiana [176]
A bowling ball.
definition of dense-closely compacted in substance
6 0
3 years ago
How much heat must your body transfer to 500.0g of water to heat it from 25.0°C to body temperature, 37.0°C?
shtirl [24]

Answer : The heat your body transfer must be, 25.1 kJ

Explanation :

Formula used :

Q=m\times c\times \Delta T

or,

Q=m\times c\times (T_2-T_1)

where,

Q = heat = ?

m = mass of water = 500.0 g

c = specific heat of water = 4.18J/g^oC

T_1 = initial temperature  = 25.0^oC

T_2 = final temperature  = 37.0^oC

Now put all the given value in the above formula, we get:

Q=500.0g\times 4.18J/g^oC\times (37.0-25.0)K

Q=25080J=25.1kJ

Therefore, the heat your body transfer must be, 25.1 kJ

3 0
3 years ago
Binary compounds are formed by ............... ............... elements.
goblinko [34]

Answer: i think its A diatomic compound..

Explanation: hope i helped! sorry if im wrong!

6 0
3 years ago
All of the following are equal to Avogadro's number EXCEPT ____. a. the number of atoms of bromine in 1 mol Br2 b. the number of
Colt1911 [192]

All the following are equal to Avogadro's number EXCEPT a. the number of atoms of bromine in 1 mol Br₂.

1 mol Br₂ contains Avogadro’s number of molecules of Br₂.

However, each molecule contains two atoms of Br, so there are

<em>2 × Avogadro’s number of Br atoms </em>in 1 mol Br₂.

8 0
2 years ago
Other questions:
  • What is latice energy
    9·1 answer
  • Which radioisotope is used in dating geological formations?i-131u-238ca-37fr-220?
    10·1 answer
  • And experiment a student measures the speed of a toy car locations K through N as it rolls down a ramp based on the data collect
    13·1 answer
  • What are the fields of science??
    7·1 answer
  • An action potential is regarded as an example of a positive feedback. Which of the following examples below best illustrates the
    11·1 answer
  • Which is an example of a base?a(lemon juice b(baking soda c(an insolator d( water
    9·1 answer
  • Transfer of heat by the flow of a heated material
    7·1 answer
  • Question
    7·1 answer
  • Hii pls help me!! <br>even if u know how to do one, it's okk <br>anything helps ​
    10·1 answer
  • An atom has 6 electrons in its outer orbit. It will most likely form an ion with a charge of:
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!