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
ahrayia [7]
2 years ago
8

All elements have a AHf, of ___

Chemistry
1 answer:
stellarik [79]2 years ago
7 0

All elements have a AHf, of <u>0</u>

kJ/mole at standard temperature and pressure.

<h3>What is an element?</h3>

An element can be defined as a substance which cannot be split into two or more simpler forms by an ordinary chemical process

Below are the list of the first twenty elements:

  • Hydrogen
  • Helium
  • Lithium
  • Berylium
  • Boron
  • Carbon
  • Nitrogen
  • Oxygen
  • Fluorine
  • Neon
  • Sodium
  • Magnesium
  • Aluminum
  • Silicon
  • Phosphorus
  • Sulphur
  • Chlorine
  • Argon
  • Potassium
  • Calcium

So therefore, all elements have a AHf, of <u>0</u>

kJ/mole at standard temperature and pressure.

Learn more about elements:

brainly.com/question/11829854

#SPJ1

You might be interested in
Which statement best describes heating by conduction?
katovenus [111]

Answer:

It would be A.  Air molecules touch the warm ground, Heating them up because conduction is when a source of energy touches something directly.

6 0
2 years ago
Read 2 more answers
In a unimolecular reaction with seven times as much starting material as product at equilibrium, what is the value of keq?
Kitty [74]

<em>K</em>_eq = 0.14

The chemical equation is  

A ⇌ B

The equilibrium constant expression is

<em>K</em>_eq = [B]/[A]

If [A] = 7[B]

<em>K</em>_eq = [B]/{7[B]}= 1/7 = 0.14

6 0
3 years ago
A characteristic used to describe something is called a
Pani-rosa [81]
Trait-descriptive adjectives.



adjectives that can be used to describe characteristics of people are called.
3 0
3 years ago
Read 2 more answers
A formal accusation of a crime issued by a grand jury
shusha [124]
I’m pretty sure it’s indictment
4 0
3 years ago
Which state of matter consists of particles that can be partially compressed? Gas Liquid Plasma Solid
son4ous [18]

Answer: Option (b) is the correct answer.

Explanation:

In liquid state, particles do have kinetic energy that helps in partially overcoming the intermolecular forces between the molecules. But still the particles are close together and they are able to slide past each other.

So, when we apply pressure on a liquid then its molecules partially gets compressed.

On the other hand, molecules of a solid are held together by strong intermolecular forces of attraction. Hence, they have definite shape and volume. As a result, solids do not get compressed.

In gases and plasma state of matter, molecules are gar away from each other. So, they are able to get completely compressed when a pressure is applied.

Thus, we can conclude that liquid is the state of matter which consists of particles that can be partially compressed.

8 0
2 years ago
Other questions:
  • Please help!!
    14·1 answer
  • A textbook weighs 58.8 N on Earth. What is the mass of the textbook?
    10·1 answer
  • The yellow light given off by a sodium vapor lamp used for public lighting has a wavelength of 589nm. What is the frequency of t
    10·1 answer
  • Is a raccoon a carnivore
    6·1 answer
  • A 20.0 mL sample of hydrochloric acid was neutralized with 58.4 mL of 0.250 M NaOH, in a titration.
    5·1 answer
  • Since air is a type of matter, air must be made out of tiny particles that are called _______.
    10·2 answers
  • What is the combining number of lead?
    11·1 answer
  • Lime is used in farming to reduce the acidity of the soil. The chemical name for lime is calcium oxide. When the water in the so
    14·1 answer
  • If sodium (Na) is combined with Chlorine (CI), the compound would have which formula? A. Naci 0 O B. CINa C. ClaNa D. Na2C14​
    7·1 answer
  • Need help please
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!