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VARVARA [1.3K]
2 years ago
11

Which of the following is NOT a medium through which a mechanical wave can travel?

Chemistry
2 answers:
ipn [44]2 years ago
5 0

Answer:

maybe a

Explanation:

i looked it up and it said

mechanical waves always require a medium to travel and cannot travel in a vacuum

Olin [163]2 years ago
4 0

Answer:

A. vacuum

your welcome

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irinina [24]

Answer:

you can do a celser lava lamp its really easy, i can give you a link if you need?

Explanation:

3 0
2 years ago
How do chemists use systems and order in their work?
san4es73 [151]

Answer:

5 point) Chemists used systems and order because they study the basic unit of all forms of matter, which is the atom . However, there are several different kinds of atoms, called elements . Chemists organize these elements using the periodic table .

Explanation:

3 0
2 years ago
Exactly 1.0 mol N2O4 is placed in an empty 1.0-L container and is allowed to reach equilibriumdescribed by the equation N2O4(g)↔
Vilka [71]

Answer : The correct option is, (C) 1.1

Solution :  Given,

Initial moles of N_2O_4 = 1.0 mole

Initial volume of solution = 1.0 L

First we have to calculate the concentration N_2O_4.

\text{Concentration of }N_2O_4=\frac{\text{Moles of }N_2O_4}{\text{Volume of solution}}

\text{Concentration of }N_2O_4=\frac{1.0moles}{1.0L}=1.0M

The given equilibrium reaction is,

                           N_2O_4(g)\rightleftharpoons 2NO_2(g)

Initially                      c                 0

At equilibrium   (c-c\alpha)           2c\alpha

The expression of K_c will be,

K_c=\frac{[NO_2]^2}{[N_2O_4]}

K_c=\frac{(2c\alpha)^2}{(c-c\alpha)}

where,

\alpha = degree of dissociation = 40 % = 0.4

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

K_c=\frac{(2c\alpha)^2}{(c-c\alpha)}

K_c=\frac{(2\times 1\times 0.4)^2}{(1-1\times 0.4)}

K_c=1.066\aprrox 1.1

Therefore, the value of equilibrium constant for this reaction is, 1.1

4 0
3 years ago
Why does brining a turkey make it juicier?
olya-2409 [2.1K]

Answer:

hope this answer will help you.

6 0
2 years ago
What are some similarities and differences between physical and chemical weathering
mote1985 [20]
Similarities:
they both made sediment into soil
they both form the earth
they both made sediments have cracks

differences:
physical is reliant usually on contact with atmospheric condition

chemical transforms rocks into sediments while physical only breaks it down

chemical uses chemical reactions


(a brainliest would be appreciated)
3 0
3 years ago
Read 2 more answers
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