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
cluponka [151]
3 years ago
14

I need help ASAP PLZ!!!! I’m having trouble with a question, “How does the particle theory of matter help you explain why cold w

ater is denser than hot water?” Help me please!!!!
Chemistry
1 answer:
Kamila [148]3 years ago
8 0
Cooling a substance causes molecules to slow down and get slightly closer together, occupying a smaller volume that results in an increase in density. ... Cold water is more dense and will sink in room-temperature water.
You might be interested in
Calculate the oxidation state of the underlined elements of K2 Cr2 O7
Semenov [28]

Answer:

+4

Explanation:

In PbO2, oxygen exhibits an oxidation number of -2 (since it's not a peroxide or superoxide):

Let the oxidation number of Pb be x. Then, for the compound to be neutral, the oxidation numbers of all atoms should add up to zero.

⇒ x + (−2) + (−2) = 0

x = +4

So the oxidation no. of Pb is +4.

I hope this helps.

3 0
2 years ago
Using this equation, m1v2=m2v2 , calculate the diluted molarity of 100 mL of a 0.5 M solution when 50 mL of
geniusboy [140]

The molarity of the diluted solution is 0.33 M

From the question given above, the following data were obtained:

Molarity of stock solution (M₁) = 0. 5 M

Volume of stock solution (V₁) = 100 mL

Volume of diluted solution (V₂) = 100 + 50 = 150 mL

<h3>Molarity of diluted solution (M₂) =? </h3>

The molarity of the diluted solution can be obtained by using the dilution formula as illustrated below:

<h3>M₁V₁ = M₂V₂</h3>

0.5 × 100 = M₂ × 150

50 = M₂ × 150

Divide both side by 150

M₂ = 50 / 150

<h3>M₂ = 0.33 M</h3>

Therefore, the molarity of the diluted solution is 0.33 M

Learn more: brainly.com/question/24625656

8 0
2 years ago
A. 2.0x1024 atoms of S to moles (3.3)
Fynjy0 [20]

3.3 moles of sulfur

Explanation:

To find the number of moles knowing the number of atoms we use Avogadro's number to formulate the following reasoning:

if in         1 mole of sulfur (S) there are 6.022 × 10²³ atoms of sulfur (S)

then in   X moles of sulfur (S) there are 2 × 10²⁴ atoms of sulfur (S)

X = (1 × 2 × 10²⁴) / (6.022 × 10²³)

X = 3.3 moles of sulfur

Learn more about:

Avogadro's number

brainly.com/question/1445383

#learnwithBrainly

5 0
3 years ago
/msk-yoxd-wmh<br> cya there
oksano4ka [1.4K]

Answer:

aaaaahhhhhhhhhhhhhhhhhhhhhhhhhh

Explanation:

6 0
3 years ago
Can you help me please?
mote1985 [20]

Answer:

A. the light subatomic.... is correct answer

3 0
3 years ago
Other questions:
  • A gas has a volume of 350.0 mL at 45.0°C. If the volume changes to 400.0 mL, what is the new
    8·1 answer
  • The gram formula mass of NH4Cl is(1) 22.4 g/mole (3) 53.5 g/mole(2) 28.0 g/mole (4) 95.5 g/mole
    11·2 answers
  • Why should we store Phosphorus in water​
    15·1 answer
  • scientist have found many marine fossils on the mountain far from any ocean or sea what is the best explanation for these fossil
    10·1 answer
  • What is the systematic name of NH4ClO3
    12·1 answer
  • What mass of oxygen reacts with 3.6 g of magnesium to form magnesium oxide?
    12·1 answer
  • How many zinc atoms are there in 65.4 g?
    7·1 answer
  • Clasifica los siguientes elementos en metales, no metales, metaloides , o gases , nobles : flúor , azufre , nitrogeno , cloro ,
    12·2 answers
  • Divers who go to great depths in the ocean experience large differences in pressure between the surface and their final destinat
    6·1 answer
  • Rank the speeds of sound through these materials, from greatest to least:a. Airb. Steelc. Water
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!