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
valina [46]
3 years ago
15

2. State one difference between gas and vapour. Which of the following substance in the gaseous state should be called a vapour?

(i) Helium
(ii) Nitrogen (iii) Sulphur (iv) Carbon dioxide.
Chemistry
1 answer:
Neporo4naja [7]3 years ago
3 0
Difference between Gas and Vapour:
                                                          
Gas:
        A thermodynamic state in which a substance exists only in one phase i.e. Gas phase. In above given examples N₂, He and CO₂ exists as gases at room temperature. These gases cannot form a solid or liquid phase along with gas phase as these states requires very low temperatures.

Vapours:
               It is a thermodyanamic state in which a substance exists in more than one phase. In given options Sulfur can exist in vapor state. This is because sulfur exists in a cyclic or chain form due to catenation (self linkage property). Therefore, a lower members of S allotrops can form a vapours.
You might be interested in
Which force controls the size of an atomic nucleus?.
klemol [59]

Answer:

strong nuclear force

Explanation:

1, a force that acts on charged particles

2, a force that holds atomic nuclei together

3, gravity, weak nuclear, electromagnetic, strong nuclear

4, strong nuclear force

5, Gravity and the electromagnetic force have infinite ranges while the nuclear forces have very small ranges.

100% :)

3 0
2 years ago
In a sample of solid ba(no3)2 the ratio of barium ions to nitrate ions is
Nata [24]
I believe the ratio is 1:2
7 0
3 years ago
Convert the condensed structures to line angle formulas: 1. CH3CH2CH(CH3)CH2CH3 8. CH:COCH 9. CH3CH2OCH3 2. CH3CH2CH(CH2CH3)CH(C
kumpel [21]

Answer:

Attached in the photo.

Explanation:

Hello,

The answers in the attached photo. Just three things:

- In the second point a parenthesis is missing to properly understand the molecule (after the oxygen), nevertheless, I assumed it was an ether.

- In the sixth point, there's a missing hydrogen for it to be an ether as well.

- In the tenth point the second parenthesis is not clear, it seems there's a missing subscript, nevertheless I draw it assuming complete octates.

Best regards.

3 0
3 years ago
Which method is the typical first step when scientists communicate their scientific results?
hodyreva [135]
Purpose
prediction
procedure
data
calculation
conclusion - results etc.
5 0
3 years ago
Read 2 more answers
Can you answer it please?!​
aksik [14]

Answer:

Explanation:

1. NaCl Sodium Chloride

2. KI Postassium Iodide

3. MgF2 Magnesium  Flouride

4.MgO Magnesium Oxide

5. Na2O2

6 0
2 years ago
Other questions:
  • How many moles of H2SO4 are needed to completely react with 15.0 mole of Al?
    11·1 answer
  • In 1990, the northern spotted owl was listed as endangered. Because of this, millions of acres of forests in the Pacific
    8·1 answer
  • A fossil was analyzed and determined to have a carbon-14 level that is 70 % that of living organisms. The half-life of C-14 is 5
    14·1 answer
  • What are collisions and combinationations of gas and matter called
    6·1 answer
  • Determine the basic oxidation<br>number for elements in s and p<br>orbitals​
    13·1 answer
  • (HELP I HAVE 10 MINS TO TURN IN) why is the nervous system in the human body a system?
    5·1 answer
  • What do adamantium,vibranium and unobtainum have in common
    11·1 answer
  • Calculate the number of grams of nitrogen dioxide that are produced from 4 moles of nitric oxide
    7·1 answer
  • How do i know if a reaction is exo/endothermic?? help please.
    12·1 answer
  • Please help , science tho. by the way i have to do 5
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!