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
AnnZ [28]
1 year ago
9

Phase change involves changing states of matter (solid-liquid-gas). How do these three states of matter differ from each other?

(on a molecular level)
Chemistry
1 answer:
Morgarella [4.7K]1 year ago
4 0

solid : the molecules are tightly packed

liquid : the molecules have some space in them

gas : molecules can freely move around

You might be interested in
El agua del mar contiene aproximadamente un 3,0 % m/v de sal (NaCl, 58,44 g/mol), (asuma que es la única fuente de cloruros) si
Alchen [17]

Answer:

s = 4.41 g/L.

Explanation:

¡Hola!

En este caso, considerando el escenario dado, se hace necesario para nosotros saber que la posible reacción de disociación la experimenta el cloruro de plomo (II) como se muestra a continuación:

PbCl_2(s)\rightleftharpoons 2Cl^-(aq)+Pb^{2+}(aq)

Lo cual hace que la expresión de equilibrio se calcule como:

Ksp=[Pb^{2+}][Cl^-]^2

Y que en términos de la solubilidad molar, s, se resuelve como:

1.6x10^{-5}=s(2s)^2\\\\1.6x10^{-5}=4s^3\\\\s=\sqrt[3]{\frac{1.6x10^{-5}}{4} } \\\\s=0.0159molPbCl_2/L

Ahora, convertimos este valor a g/L al multiplicarlo por la masa molar del cloruro de plomo (II):

s=0.0159molPbCl_2/L*\frac{278.1gmolPbCl_2}{1molmolPbCl_2} \\\\s=4.41g/L

¡Saludos!

7 0
3 years ago
GIVING BRAINLIEST!!! A student observes a beaker of room temperature water resting on a table. She states that the beaker of wat
defon

Answer:

a

Explanation:

im thinking because the water is a room temperature there shouldnt be anm immence amount og heat energy for it to have a good amount of energy tho i could be wrong because its not moving it could have no energy.

8 0
3 years ago
Read 2 more answers
Objects that are able to fall have what type of energy?
ASHA 777 [7]

Answer:

kinetic energy

Explanation:

because of the movement of gravity and space

4 0
3 years ago
For an insoluble compound, how might you prevent formation of the precipitate
anastassius [24]
<span>protect it by covering it by lyophilic sol.</span>
8 0
3 years ago
Calculate the change in entropy if Br2(l) is converted to Br2(g).
Alik [6]

Ans: The entropy change for the given reaction is 93.3 J/K

Given reaction:

Br2(l) → Br2(g)

ΔS = ∑n(products)S⁰(products) - ∑n(reactants)S⁰(reactants)

     = 1 mole* S°(Br2(g)) - 1 mole*S°(Br2(l))

     =  1 mole *245.5 J/mol-K - 1 mole*152.2 J/mol-K

     = 93.3 J/K

5 0
3 years ago
Other questions:
  • Given the balanced equation representing a reaction occurring at 101.3 kilopascals and 298 k. 2h2(g) + o2(g) → 2h2o(l) + energy
    5·1 answer
  • In the periodic table, a set of properties repeats from
    12·2 answers
  • a gas that exerts a pressure of 215 torr in a container with a volume of 51.0 mL will exert a pressure of ? torr when transferre
    5·1 answer
  • 18 g of copper is mixed with silver nitrate in water. How much copper ll nitrate will formed?
    7·1 answer
  • Calculate the mass percent of titanium in the mineral ilmenite, FeTiO3. What mass of ilmenite (in grams) is required if you wish
    9·1 answer
  • Hydrogenation of double and triple bonds is an important industrial process. Calculate (in kJ/mole) the standard enthalpy change
    11·1 answer
  • 4. A compound has both ionic and covalent bonds if it contains what?chemistry​
    8·1 answer
  • A block of ice measures 2 ft X 1 ft X 2in. Find the volume of the ice block in cubic inches.
    6·1 answer
  • Which 3 characteristics are used to describe all waves, regardless of type? Check all that apply.
    5·2 answers
  • Calculate how many moles of water molecules were produced in the combustion of ethanol in oxygen.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!