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
serg [7]
3 years ago
5

You observe mothballs disappearing in cabinets. What do you think is the reason for this? Do all substances behave like mothball

s at normal conditions? Explain by citing some examples Need lang po for science ;(
Chemistry
1 answer:
cricket20 [7]3 years ago
8 0

Answer: Mothballs have weak intermolecular forces.

No all substances do not behave like mothballs at normal conditions. Example: benzene , chloroform

Explanation:

Sublimation is a process of converting a substance from solid state to gaseous state without the formation of liquid at constant temperature.

A substance which undergoes sublimation is called as sublimating substance.

As mothballs is made of napthalene which has weak inter molecular forces of attraction between its molecules, it directly sublimes into gaseous state without leaving any residue and is called as a sublimating substance.

Not all substances behave like mothballs at normal conditions. Example: benzene , chloroform

You might be interested in
In the temperature part of the experiment, which antacid tablet dissolved the fastest? Which antacid tablet dissolved the slowes
Degger [83]

Answer:

Correct answer is:  "Cold Water"

Explanation:

EDGE 2020

8 0
3 years ago
0.415 g of an unknown triprotic acid are used to make a 100.00 mL solution. Then 25.00 mL of this solution is transferred to an
Arturiano [62]

Answer:

Explanation:

Initial burette reading = 1.81 mL

final burette reading = 39.7 mL

volume of NaOH used = 39.7 - 1.81 = 37.89 mL .  

37.89 mL of .1029 M NaOH is used to neutralise triprotic acid

No of moles contained by 37.89 mL of .1029 M NaOH

= .03789 x .1029 moles

= 3.89 x 10⁻³ moles

Since acid is triprotic ,  its equivalent weight = molecular weight / 3

No of moles of triprotic acid = 3.89 x 10⁻³ / 3

= 1.30   x 10⁻³ moles .

8 0
3 years ago
5
Archy [21]

Answer:

<h3>The answer is option C</h3>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

volume of liquid = 15 mL

density = 2.5 g/mL

We have

mass = 15 × 2.5

We have the final answer as

<h3>37.5 g</h3>

Hope this helps you

6 0
3 years ago
How many electrons will be in the valence of non- H atoms when they make covalent bonds?
NNADVOKAT [17]

Answer:

Please one time click here

Mark brainliest

8 0
3 years ago
50 POINTS..!!! NEED RHE ANSWER ASAP..!!! consider the original wave at the top of the illustration. compare the original wave to
Vika [28.1K]

Answer:

my best guess is b

Explanation:

typically the lower the pitch the longer the wave line inbetween the inclines are

4 0
3 years ago
Other questions:
  • 34 What is the gram-formula mass of Fe(NO3)3?(1) 146 g/mol (3) 214 g/mol
    8·1 answer
  • What type of temperature changes produce large crystals
    14·1 answer
  • Calculating the volume of 0.05mol/dm3 KOH is required to neutralise 25.0cm3 of 0.0150mol/dm3 HNO3
    9·1 answer
  • Click in the answer box to activate the palette. List the following molecules in order of increasing dipole moment: H2O, CBr4, H
    13·1 answer
  • Characteristics of a mixture?
    7·2 answers
  • Which salt is not formed from metal ions. NaCl, BaSO4, SrCl2, NH4OH
    6·2 answers
  • which of the following is a physical change? 1.burning paper 2.grinding wheat 3.electrolysis of water 4.cooking rice​
    11·1 answer
  • Which statement describes how the angle of insolation affects different areas of Earth?
    14·2 answers
  • Quick question: Are water molecules attracted to each other because of the polar nature of water?
    11·1 answer
  • WILL MARK AS BRAINLIEST IF CORRECT
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!