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Fittoniya [83]
4 years ago
13

If the atomic number for oxygen is 8, how

Chemistry
1 answer:
hjlf4 years ago
4 0
8 protons are in the nucleus
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What is kinetic energy of a 100 kg object that is moving with a speed of 15 m/s
elena-s [515]

Answer:

16875 Joules

Kg m^2 s^-2 = Joule ,so The kinetic energy of a body of mass 150 Kg moving at 15m/s is 16875 Joules.

Explanation:

6 0
3 years ago
The following data are obtained for the decomposition of N2O5 at a certain temperature: 2N2O5(g) ↔ 4NO2(g) + O2(g) Time(s) 0 200
cricket20 [7]

Answer:

K = 0.0003 s⁻¹

Explanation:

The reaction is

2N₂O₅ = 4NO₂ + O₂

The equilibrium is

K[N_{2} O_{5} ]=-\frac{1}{2} \frac{d[N_{2} O_{5} ]}{dt} \\\int\limits^y_x {d[N_{2} O_{5} ]}{} \, =-2k\int\limits^t_0 {dt} \,\\ln[N_{2} O_{5} ]=-2kt+ln[N_{2} O_{5} ]

a plot is attached

From the plot, the slope is -0.0006

-2 * K = -0.0006

K = 0.0003 s⁻¹

Download xlsx
6 0
3 years ago
Which term is used to describe the attraction that an oxygen atom has for the electrons in a chemical bond?
Mekhanik [1.2K]

electronegativty

It is the attraction force

8 0
3 years ago
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A student notices that an inflated balloon gets larger when it is warmed by a lamp. Why did the balloon get larger?
Shkiper50 [21]

Answer:

because of the heat expanding the balloon

7 0
3 years ago
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A population of rabbits is separated by a mountain range. Which of the following is most likely to occur?
galina1969 [7]

Answer:

c

Explanation:

we cannot say that either will die out, because we dont know the conditions. but we know that both sides out the mountian arent exactly the same, so we know they will evolve to adapt and grow with what they have

3 0
3 years ago
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