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Arisa [49]
2 years ago
5

The speed of sound is greater through a solid than through a gas because the molecules in a solid are

Chemistry
2 answers:
hammer [34]2 years ago
5 0
The answer should be d) closer together
DedPeter [7]2 years ago
5 0
D) closer together
This is the correct answer
Hope it helps :)
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How do the results for methane compare to those for butane? does your experimental data verify charles's law?
maks197457 [2]
<span>Yes, it does. Charlie's law states that when the volume is constant the mass of a gas will be directly related to the temperature. When the temperature and pressure were fixed in both gases the relation between the temperature and the volume increased, so the volume increased when the temperature increased.</span>
4 0
3 years ago
Under each DNA sequence write the complimentary mRNA base sequence that each of these gene fragments would produce. Remember tha
s344n2d4d5 [400]

Answer:

The correct answer would be -

Thymine to adenine

Cytosine to guanine

guanine to cytosine

<u>Adenine</u>, and <u>"U" uracil</u> respectively.

Explanation:

mRNA is a sequence of complementary base sequences encoded from a gene or DNA segment which is used to produce the protein by the process called translation.

From converting a sequence from DNA to its complementary mRNA sequence, the rules of complementary base pairing will be applied: Cytosine (C) is replaced with Guanine (G) – and vice versa. Uracil (U) is replaced by Adenine (A) and Thymine is replaced by adenine.

4 0
3 years ago
Use the periodic to fill in the numbers in the electron configurations shown below. Na: 1s22sC2pD3sE
Sergeeva-Olga [200]

Answer is: C is equal to 2, D is equal to 6 and E is equal to 1.

C, D and E represent number of electrons on each atomic orbital in sodium atom.

Electron configuration of sodium atom: ₁₁Na 1s² 2s² 2p⁶ 3s¹.

Atomic number of sodium is 11, it means that it has 11 protons and 11 electrons, so atom of sodium is neutral.  


8 0
3 years ago
Read 2 more answers
ALEKS Ammonia will decompose into nitrogen and hydrogen at high temperature. An industrial chemist studying this reaction fills
Nikolay [14]

2NH3(g) = N2(g) + 3H2(g)

Before decomposed :

P NH3 = 2.7 atm

After decomposed :

P N2 = 0.54 atm

P H2 = P N2 / 3 = 0.54 / 3 = 0.18 atm

P NH3 = 2.7 - 2(0.18) = 2.34 atm

Pressure equilibrium constant :

Kp = (P N2)(P H2)³ / (P NH3)²

Kp = (0.54)(0.18)³ / (2.34)²

Kp = 5.75 × 10^(-4)

6 0
3 years ago
Xas shown in table 15.2, kp for the equilibrium n21g2 + 3 h21g2 δ 2 nh31g2 is 4.51 * 10-5 at 450 °c. for each of the mixtures li
Agata [3.3K]
According to the balanced equation of this reaction:
N2(g) + 3H2(g) ↔ 2NH3(g)
and when we have Kp = 4.51 x 10^-5 so, in the Kp equation we will substitute by the value of the P for each gas to compare the value with Kp = 4.51x10^-5

a) when we have 98 atm NH3, 45 atm N2, 55 atm H2 by substitution in Kp equation:
Kp= [p(NH3)]^2 / [p(N2)]*[p(H2)]^3 = [98]^2 / [45]*[55]^3
                                                        = 1.28x10^-3 
So here the value is higher than the value of the given Kp.
so the reaction will go leftwards toward the reactants ( to reduce the value of Kp) to reach the equilibrium. 
b) When 57 atm NH3, 143 atm N2, No H2 so like a) by substitution:
Kp = [57]^2 / [143] = 22.7
So the reaction will go leftwards toward the reactants to reduce the value of Kp to reach equilibrium.
c) when 13 atm NH3, 27 atm N2, 82 H2
Kp = [13]^2 / [27]*[82]^3 = 1.135 x 10^-5 So this value is lower than the Kp which is given.
 so, the reaction will go towards the right toward the products to increase the value of Kp to reach the equilibrium.  
8 0
3 years ago
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