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
expeople1 [14]
3 years ago
6

Natural gas is methane and it is combined with oxygen to produce carbon dioxide gas and

Chemistry
1 answer:
frez [133]3 years ago
7 0

Answer:

Negative

Explanation:

Enthalpy changes are heat changes accompanying physical and chemical changes. An enthalpy change is the difference between the sum of the heat contents of products and sum of the heat contents of reactants.

     

In exothermic change, heat is liberated to the surrounding. The surrounding becomes hotter at the end of the changes.

Enthalpy change is assigned a negative sign as the sum heat contents of products is less than that of the reactants.

You might be interested in
Observation what happens when you add distill water salt and lemon juice​
Slav-nsk [51]

Answer:

But when we add some salt or the lemon juice to it, it starts conducting electric current and shows deflection of magnetic compass because salts and acids are conductors of electric current when salt or lemon juice is mixed in distilled water it becomes conductor of electricity.

Explanation:

hope this helps

4 0
3 years ago
What’s the relationship between atomic radius and ease of oxidation on the activity series.
user100 [1]

The bigger the atomic radius the easier it is to oxidise the atom. Remember that an atom is oxidized by the loss of an electron.

Explanation:

The bigger the atomic radius the further away the valence electron are from the attractive force of the atomic nucleus. This means that the energy required to remove an electron from the valence shell is easier compared to an atom with a smaller atomic radius. This is because you need to overcome the attractive force of the nucleus on the electron for you to oxidize the atom.

Learn More:

For more on oxidation energy check out;

brainly.com/question/8835627

brainly.com/question/13507502

#LearnWithBrainly

3 0
3 years ago
A balloon has a volume of 1.75L at a temperature of 298K. What will be the volume of the balloon if you take it out into the win
lozanna [386]

Answer:

1.52 L

Explanation:

P1V1T2=V2P2T1

V2=V1T2/T1

Fill in with given values then solve

We can check this by knowing that V and T at constant P have a proportional relationship. Hence, this is correct.

- Hope that helped! Please let me know if you need further explanation.

7 0
3 years ago
9. You have a mini bottle of pure maple syrup. The full container has a mass of 137
cupoosta [38]

Answer:

A

Explanation:EDGE

7 0
3 years ago
In an electrically neutral atom of any element, there are equal numbers of
Masteriza [31]

Answer:

B. electrons and protons.

Explanation:

In an electrically neutral atom of any element, there are equal number of protons and electrons in the atom.

Protons are the positively charged particles in an atom.

Electrons are the negatively charged particles within the atom.

  When the number of protons and electrons are the same or equal, the atom is neutral.

But when there is an imbalance, an ion results.

8 0
3 years ago
Other questions:
  • When 2 grams of powdered lead (IV) oxide was added to 100 cm3 of hydrogen peroxide, water and oxygen were produced. Lead (IV) ox
    8·2 answers
  • If a projectile flies 387 meters north in 8.5 seconds, what is its velocity?
    8·1 answer
  • -What is the wavelength of a 2.28 x 1017 Hz wave?
    5·1 answer
  • What is the molecular formula of the compound whose molar mass is 90.08 g/mol and empirical formula is CH2O??
    15·1 answer
  • Describe what you should do to recover only the water from a sample of muddy water.<br>​
    6·2 answers
  • PLEASE HELP ASAP! AND PLEASE DO NOT GIVE ME ANY VIRUSES!
    15·1 answer
  • Helpppppppppppppppppppppppppppppppppppppppp
    12·2 answers
  • Help please
    8·2 answers
  • How does the altitude of the Sun change throughout the year in Reno, NV?
    11·1 answer
  • Here "outstanding" means.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!