1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Morgarella [4.7K]
3 years ago
6

What is responsible for the whistling sound that often accompanies firework?

Chemistry
1 answer:
Naya [18.7K]3 years ago
8 0
The wistle is coming from all the chemicals including the fire you use to light the firework and a chemcial reaction is occuring which is the sound that is made because of this
You might be interested in
Nitric acid can be produced by the reaction of gaseous nitrogen dioxide with water. 3 no2(g) + h2o(ℓ) −→ 2 hno3(ℓ) + no(g) if 85
Naya [18.7K]
The balanced equation for the above reaction is as follows;
3NO₂ + H₂O --> 2HNO₃ + NO
stoichiometry of NO₂ to NO is 3:1
molar volume is where 1 mol of any gas occupies a volume of 22.4 L
volume of gas is directly proportional to number of moles of gas.
therefore stoichiometry can be applied for volume as well.
volume ratio of NO₂ to NO is 3:1
volume of NO₂ reacted - 854 L
therefore volume of NO formed - 854 L /3 = 285 L
volume of NO formed - 285 L
8 0
2 years ago
What kind of questions can science answer
IrinaK [193]

Answer:

hypothesis

Explanation:

a question that can be answered wity a hypothesis is a question a scientist can answer

5 0
3 years ago
Study the picture below. <br><br><br><br><br><br>Done!! Thanks ​
myrzilka [38]

The rabbit and the girl are living things.

The shoe and the skirt are non-living things.

5 0
3 years ago
Which of the following compounds contains the lead (iv) ion?
Oliga [24]
Oxidation state of Pb in PbO2 is +4.
Oxidation state of Pb in PbCl2 is +2.
Oxidation state of Pb in Pb2O is +1.
Oxidation state of Pb in Pb4O3 is +6/4.

Hence option A. PbO2 is correct.
Hope this helps, have a nice day!
6 0
3 years ago
Read 2 more answers
When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 20.4 g g of carbon were burned in the presence
Aleonysh [2.5K]

Answer:

C + O2 -> CO2

C 20.4/12 = 1.7

O 70.4-16.0/16=3.4

CO2 1.7 mol * 44 = 74.8

3 0
3 years ago
Other questions:
  • 4.87 x 103 + 1.092 x 107 =
    9·2 answers
  • N2O5 decomposes to form NO2 and O2 with first-order kinetics. The initial concentration of N2O5 is 3.0 M and the reaction runs f
    11·1 answer
  • Identify the type of reaction represented by each equation.
    10·2 answers
  • Into how many peaks will each proton shown in red be split
    5·1 answer
  • What will happen as the excited electron of arsenic atoms return to lower energy levels?
    9·1 answer
  • Any one of the 6 machines that all machines are made of​
    6·1 answer
  • What is the relationship between particle collisions and reaction rates?
    10·1 answer
  • A neutral atom has a ground state electron configuration of 1s22s22p63s2.The neutral atom becomes an ion during a chemical react
    6·1 answer
  • Are pterosaurs more closely related to turtles or to crocodilians? Explain your answer.
    9·1 answer
  • Approximately 50% of our bone is chemically calcium phosphate, Ca3(PO4)2
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!