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
Anna11 [10]
3 years ago
13

Question 1: Gases diffuse easily through these types of solids

Chemistry
1 answer:
nexus9112 [7]3 years ago
3 0

Q1: Gases diffuse easily through amorphous or porous solids.

Q2:All changes in phase are called change in state of matter.

Answer:

Explanation:

Gases diffuse easily through amorphous or porous solids. Usually solids are densely packed with no space. But porous solids can help in diffuse gas into them. Due to the vacancy present in these solids, gas can easily diffuse through these types of solids.

Similarly, the phase changes lead to change in the state of matter. As the basic of change in phase leads to change in its state from solid to liquid or from liquid to gas or vice versa. So change in state of matter will occur in any change in phase.

You might be interested in
Can u pls help me with this question ​
trasher [3.6K]

i think its volume but im not 100% sure

7 0
3 years ago
Read 2 more answers
What’s the scientific notation for 654,000
tigry1 [53]
6.54 x 10^5

When trying to figure out a number in a scientific notation, use this notation! 

<span>a*10^<span>b
</span></span>


P.S. If this answer helped you, please, make sure to say "Thanks" just below my answer. It will help me a lot.
8 0
3 years ago
What is the length of a one-dimensional box for an electron (9.109 x 10-31 kg) with an n=1 energy of 479 kJ/mol? Give the answer
OverLord2011 [107]

Answer : The length of a one-dimensional box for an electron is 2.819\times 10^{31}\AA

Explanation :

The energy level of quantum particle in a one-dimensional box is given as:

E_n=\frac{n^2h^2}{8mL^2}

where,

E_n = 479 kJ/mol = 479000 J/mol

n = energy level = 1

h = Planck's constant = 6.626\times 10^{-34}Js

m = mass of electron = 9.109\times 10^{-31}kg

L = length of a one-dimensional box = ?

Now put all the given values in the above formula, we get:

479000J/mol=\frac{(1)^2\times (6.626\times 10^{-34}Js)^2}{8\times (9.109\times 10^{-31}kg)\times L^2}

L=2.819\times 10^{21}m

conversion used : 1m=10^{10}\AA

L=2.819\times 10^{31}\AA

Therefore, the length of a one-dimensional box for an electron is 2.819\times 10^{31}\AA

3 0
3 years ago
1. Based on the data set and the true measured value being 28km.
motikmotik

Answer:

this data is both accurate and precise

4 0
3 years ago
Read 2 more answers
Enter the condensed electron configuration for cu4+.express your answer in condensed form, in order of increasing orbital energy
Marysya12 [62]
Electronic Configuration of Cu⁴⁺ is written using these two steps;

Step I:
          Write the Electronic Configuration of Copper (Cu).

As Atomic Number of Cu = 29
So,
                             1s², 2s², 2p⁶, 3s², 3p⁶, 3d¹⁰, 4s¹

Rearranging it in order of increasing orbital energy,

                             1s², 2s², 2p⁶, 3s², 3p⁶, 4s¹, 3d¹⁰
Or,
                            Cu  =   [Ar] 4s¹, 3d¹⁰

Step II:
            Now, the Cu⁴⁺ ion has lost 4 electrons, So one electron from 4s and 3 electrons from 3d orbital are removed, The resulting electronic configuration becomes,
                            Cu⁴⁺  =   [Ar] 3d⁷
3 0
4 years ago
Read 2 more answers
Other questions:
  • As relative humidity goes up, what do you predict will happen to the wet bulb/dry bulb temperatures?
    6·1 answer
  • When the reaction xC + yO2 zCO is balanced, what should the coefficients be? (Hint: x, y, and z represent the coefficients.) A.
    11·1 answer
  • How is the motion of particle in a gas different from the motion of particles in a liquid?
    14·1 answer
  • For the reaction A → B, the rate law is: rate = k × [A]. What is the order of the reaction? second-order first-order zero-order
    7·1 answer
  • A student was given a standard fe(s)| fe2+(aq) half-cell and another halfcell containing an unknown metal, m(s), immersed in 1 m
    12·1 answer
  • Select the false statement below : Fe2+ is more paramagnetic (has more unpaired electrons) than Fe3+ Fe3+ is isoelectronic with
    6·2 answers
  • The mass of the sugar in a small sugar packet is about one gram. If we could harness all of the energy contained in the nuclei o
    15·1 answer
  • Differences in states of matter are determined by
    14·2 answers
  • A partial molar property of a component in a mixture may be either greater than or less than the corresponding pure-component mo
    11·1 answer
  • Is it a plant or animal cell?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!