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
juin [17]
4 years ago
9

4. Describe in detail the relationship between chemical bonds and energy. What must be true of the bonds for a reaction to be en

dothermic, and what must be true for the reaction to be exothermic?
Chemistry
1 answer:
tamaranim1 [39]4 years ago
7 0
When a bond is formed, the energy is released. Also, it must be supplied when the bond is broken.
In an endothermic reaction, the energy required to break the bond in the reactants must be greater than the energy released forming the bond in the product.
In an exothermic reaction more energy is released in forming  the bonds on the product than is absorbed to break the bonds in the reactants.
You might be interested in
Two Characteristics of Gas state​
yulyashka [42]

Answer:

has no volume and very low density relative to liquids and solids

has high kinetic energy between particles

3 0
3 years ago
If a sample of carbon monoxide is at 57 degreees celsius and under 67.88 kPa of pressure and takes up 85.3 L of space how many m
Goryan [66]
57 degrees celcius is equal to 330 degrees kelvin
67.88 kPa is equal to 67880 Pa
85.3 liters is equal to 0.0853 m^3

Now, the equation we will use to solve this question is:
PV = nRT where:
P is the pressure of gas = 67880 Pa
V is the volume of gas = 0.0853 m^3
n is the number of moles we are looking for
R is the gas constant = 8.31441 J K-1<span> mol</span><span>-1
T is the temperature of gas = 330 degrees kelvin

Substitute with the givens in the above equation to get n as follows:
n = (PV) / (RT)
n = (67880*0.0853) / (8.31441*330)
n = 2.11 moles</span>
4 0
4 years ago
Can someone help me out
Xelga [282]
Yea the first one my guy
4 0
3 years ago
the subject is science Movement of water on or near the surface of the water is called a deep current true or false
Bogdan [553]
True is the answer. Hope this helps.
6 0
3 years ago
Read 2 more answers
Cellular Respiration is the process of what? A. Producing oxygen at the cellular level. B. The release of energy from food. C. B
matrenka [14]

Cellular Respiration is the process of the release of energy from food. Hence, option B is correct.

<h3>What is cellular respiration?</h3>

Cellular respiration is the process by which organisms use oxygen to break down food molecules to get chemical energy for cell functions.

Through the process of cellular respiration, the energy in food is converted into energy that can be used by the body's cells. During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP.

Hence, option B is correct.

Learn more about cellular respiration here:

brainly.com/question/13721588

#SPJ1

4 0
2 years ago
Other questions:
  • If an equal mass of sugar and aluminum were poured into separate containers, which would require the smaller container?
    11·2 answers
  • What are three signs that a chemical change has taken place
    8·1 answer
  • A 0.870 g sample of a monoprotic acid is dissolved in water and titrated with 0.300 M KOH.
    7·1 answer
  • A neutron has approximately the same mass as
    11·2 answers
  • A sample of a gas in a rigid cylinder with a movable piston has a volume of a lamp then .2 L at STP. What is the volume of this
    7·1 answer
  • What kind of intermolecular forces act between a sodium cation and an ammonia molecule? Note: If there is more than one type of
    13·1 answer
  • Weather, erosion and deposition will change the environment over time. When water runs over rocks it can smooth out jagged edges
    11·1 answer
  • In a metallic bond electrons are _______________. A. transferred C. shared B. delocalized D. lost
    6·1 answer
  • Which phrase describes the changes that take place when a gas condenses?
    15·1 answer
  • The polyatomic nitrate ion (NO3−) is present in both the products and the reactants of the chemical equation shown below.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!