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olganol [36]
3 years ago
11

Why is venus known as the morning star and the evening star

Chemistry
2 answers:
Airida [17]3 years ago
7 0
<span>It can be seen before sunrise or just after sunset as a bright morning or evening star. </span>
Sergeeva-Olga [200]3 years ago
4 0
Venus's orbit is in Earth's orbit. 

When venus is on one side of sun...it brightens into view when the sun sets...therefore the evening star.


Venus on the other side of the sun.....you will see it as the morning star a few hours before the sunrise


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The zero order reaction 2N2O→2N2+O2 has the reaction constant k is 6.28×10−3 molL s. If the initial concentration of N2O is 0.96
Talja [164]

<u>Answer:</u> The concentration of N_2O in three significant figures will be 0.899 mol/L.

<u>Explanation:</u>

For the given reaction:

2N_2O\rightarrow 2N_2+O_2

The above reaction follows zero order kinetics. The rate law equation for zero order follows:

k=\frac{1}{t}([A_o]-[A])

where,

k = rate constant for the reaction = 6.28\times 10^{-3}\text{ mol }L^{-1}s^{-1}

t = time taken = 10 sec

[A_o] = initial concentration of the reactant = 0.962 mol/L

[A] = concentration of reactant after some time = ?

Putting values in above equation, we get:

6.28\times 10^{-3}=\frac{1}{10}(0.962-[A])

[A]=0.899mol/L

Hence, the concentration of N_2O in three significant figures will be 0.899 mol/L.

5 0
3 years ago
What is atomic theory?​
shusha [124]

Answer: the theory that all matter us made up of tiny invisible particles. Hope that help you out :)

Explanation:

3 0
3 years ago
Read 2 more answers
What is the oxidation number of s in na2s4o6?
Novosadov [1.4K]

Answer:

+2.5

Explanation:

So the oxidation number of S in Na2S4O6is +2.5.

7 0
3 years ago
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Determine the oxidation number for nitrogenin
iris [78.8K]

Answer:

1(a) N = 3

(b) N = 0

(c) N = 5

(d) N = -2

(2) Molecular formula for benzene is C6H6

Explanation:

1(a) N02 1-

N + (2×-2) = -1

N-4 = -1

N = -1+4 = 3

(b) N2

2(N) = 0

N = 0/2 = 0

(c) NO2Cl

N + ( 2×-2) + (-1) = 0

N - 4 - 1 = 0

N - 5 = 0

N = 0+5 = 5

(d) N2H4

2(N) + (4×1) = 0

2N + 4 = 0

2N = 0 - 4 = -4

N = -4/2 = -2

(2) Molcular mass of benzene = 78g/mole = (6×12g of carbon) + (6×1g of hydrogen) = 72+6 = 78g/mole

Therefore, molecular formula for benzene is C6H6

7 0
4 years ago
What is kinetic energy?
Natali5045456 [20]

Answer:

<h3>D energy of motion</h3>

Explanation:

Kinetic energy is the energy present in mass in motion

3 0
4 years ago
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