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GenaCL600 [577]
3 years ago
6

Why is it illegal to manufacture fireworks without a license

Chemistry
1 answer:
victus00 [196]3 years ago
3 0

Illegal Explosives. Illegal explosives associated with the fireworks season are inherently dangerous because of their composition and unpredictability. Homemade explosives can pose a particular risk for injury because the people making them often lack knowledge and experience in manufacturing fireworks.

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What point does the ammonium ions act as a buffer solution? Please this is driving me insane.
Shalnov [3]

Answer:

Explanation:The buffer is a mixture of ammonia (NH3) and ammonium (NH4+). ... Since ammonia (NH3) is a weak base, it will have a pH above 7 and since ammonium (NH4+) is a weak acid, it will have a pH below 7. Ammonia (NH3) is a weak base and ammonium (NH4+) is a weak acid. Ammonia (NH3) is the conjugate base of ammonium (NH4+).

7 0
3 years ago
How is the Sun related to day and night and the change of seasons?
atroni [7]

Explanation:

As the Earth moves around the sun during a year, the northern half of the Earth is tilted towards the sun in the summer, making daytime longer than night. In winter, this reverses; the earth tilts away from the sun and nighttime becomes longer

4 0
3 years ago
Read 2 more answers
A laser emits a green light with wavelength of 515 nm. Calculate the frequency of this light.
pentagon [3]

Answer:

Frequency=5.83\times 10^{14}\ Hz

Explanation:

The relation between frequency and wavelength is shown below as:

c=frequency\times Wavelength

c is the speed of light having value 3\times 10^8\ m/s

Given, Wavelength = 515 nm

Also, 1 m = 10^{-9} nm

So,  

Wavelength = 515\times 10^{-9} m

Thus, Frequency is:

Frequency=\frac{c}{Wavelength}

Frequency=\frac{3\times 10^8}{515\times 10^{-9}}\ Hz

Frequency=5.83\times 10^{14}\ Hz

6 0
3 years ago
A 975 L balloon contains helium. On the ground the temperature is 30 0C and the pressure is 743 torr. What will be the balloon's
Archy [21]

Answer:

V₂ = 1518L

Explanation:

-Using combined gas law:

\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}

<em>Where P is pressure, V is volume and T is absolute temperature of 1, initial state and 2, final state of the gas.</em>

<em />

<em>Initial states:</em>

P₁ = 743 torr

V₁ = 975L

T₁ = 30°C + 273.15K = 303.15K

P₂ = 375 mmHg = torr

V₂ = Our incognite

T₂ = -35°C + 273.15K = 238.15K

Replacing:

\frac{743torr*975L}{303.15K} =\frac{375torrV_2}{238.15K}

<h3>V₂ = 1518L</h3>
6 0
3 years ago
Which of the following would most likely contain a fossil?
Murljashka [212]
The correct answer would be limestone
6 0
3 years ago
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