Answer: It is C I just did this question in math class
Explanation:
Answer: 1 mol C8H18 produces 9 mol H2O
Explanation: reaction : C8H18 + 12.5 O2 ⇒ 8 CO2 + 9 H2O
Answer:
Option d is correct option = Frequency of light is 6.56×10⁻² Hz
Explanation:
Given data:
Frequency of light = ?
wavelength of light = 4.57×10⁹m
Solution:
Formula:
Speed of light = wavelength × frequency
c = λ × f
f = c/λ
This formula shows that both are inversely related to each other.
The speed of light is 3×10⁸ m/s
Frequency is taken in Hz.
It is the number of oscillations, wave of light make in one second.
Wavelength is designated as "λ" and it is the measured in meter. It is the distance between the two crust of two trough.
Now we will put the values in formula.
f = 3×10⁸ m/s / 4.57×10⁹m
f = 0.656×10⁻¹s⁻¹
s⁻¹ = Hz
f = 0.656×10⁻¹ Hz or 6.56×10⁻² Hz
Answer:
A) Carbon dioxide and Oxygen
Explanation:
Percentage of gases in the Planet's atmosphere:
- Carbon dioxide =<u> </u><u>4</u><u> </u><u>%</u><u> </u>
- Nitrogen =<u> </u><u>72</u><u> </u><u>%</u><u> </u>
- Oxygen =<u> </u><u>24</u><u> </u><u>%</u><u> </u>
Percentage of gases in the Earth's atmosphere:
- Carbon dioxide =<u> </u><u>0.036</u><u> </u><u>%</u><u> </u><em>(</em><em>traces</em><em>)</em>
- Nitrogen =<u> </u><u>78</u><u> </u><u>%</u><u> </u>
- Oxygen =<u> </u><u>21</u><u> </u><u>%</u><u> </u>
___________________
On observing the percentage composition of the atmospheres of the two Planets, we get:
- The newly discovered planet has more percentage of <u>Oxygen</u> than The Earth.
- Percentage of <u>Carbon dioxide</u> is more in the planet than in the Earth
- <em>Nitrogen</em> is <u>less</u> in the planet than in the Earth.
___________________
Answer:
What's asked is the name of the gases that are in higher amounts in the atmosphere of the newly discover planet
Therefore,
<h3>A) Carbon dioxide and Oxygen</h3>
Answer:
The solution is given below.
Explanation:
Speed = Distance(m)/Time(sec.)
Distance traveled = 150 m
Time taken = 3.5 seconds
Speed of car = 150/3.5 = 42.86 m/s
So the car traveled at a speed of 42.86 m/s.