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
mixas84 [53]
3 years ago
14

What do the colors produced by fireworks indicate?

Chemistry
1 answer:
ahrayia [7]3 years ago
5 0
<span>Metal compounds are used since metals have characteristic flame colors </span>
You might be interested in
An experiment reveals that 125.0 grams of an unknown metal increases in temperature from 22.0 oC to 43.6 oC upon absorbing 640 j
nydimaria [60]

Answer:

                     Cp  =  0.237 J.g⁻¹.°C⁻¹

Explanation:

                      Amount of energy required by known amount of a substance to raise its temperature by one degree is called specific heat capacity.

The equation used for this problem is as follow,

                                                 Q  =  m Cp ΔT   ----- (1)

Where;

           Q  =  Heat  =  640 J

           m  =  mass  =  125 g

           Cp  =  Specific Heat Capacity  =  <u>??</u>

           ΔT  =  Change in Temperature  =  43.6 °C  -  22 °C  =  21.6 °C

Solving eq. 1 for Cp,

                                Cp  =  Q / m ΔT

Putting values,

                                Cp  =  640 J / (125 g × 21.6 °C)

                                Cp  =  0.237 J.g⁻¹.°C⁻¹

3 0
2 years ago
Energy produced by nuclear fusion and fission
White raven [17]

Both fission and fusion are nuclear reactions that produce energy, but the applications are not the same. Fission is the splitting of a heavy, unstable nucleus into two lighter nuclei, and fusion is the process where two light nuclei combine together releasing vast amounts of energy.

3 0
3 years ago
Read 2 more answers
Which characteristic of a substance is considered a chemical property?
slavikrds [6]
B. It’s reactivity.
8 0
1 year ago
Compare molecule and atoms (not from the first answer that pops up when u search it please)
lorasvet [3.4K]

Answer:

Molecules are made up of atoms and are the smallest parts of compounds that still have properties. Atoms are the smallest parts of elements that still have properties.

Explanation:

8 0
3 years ago
Read 2 more answers
Which of the following is the correct balanced equation for the reaction in which methane (CH4) burns in atmospheric oxygen (0₂)
Talja [164]

Answer: \text{CH}_{4}+2\text{O}_{2} \longrightarrow \text{CO}_{2}+2\text{H}_{2}\text{O}

Explanation:

The unbalanced equation is

\text{CH}_{4}+\text{O}_{2} \longrightarrow \text{CO}_{2}+\text{H}_{2}\text{O}

Balancing this equation, we get:

\boxed{\text{CH}_{4}+2\text{O}_{2} \longrightarrow \text{CO}_{2}+2\text{H}_{2}\text{O}}

8 0
2 years ago
Other questions:
  • Calculate the molality of 75.0 grams of MgCl2 (molar mass=95.21 g/mol) dissolved in 500.0 g of solvent.
    8·2 answers
  • What is The temperature at which a substance changes from a liquid to a gas
    8·2 answers
  • How much sugar will dissolve in 1000 g of water at 80°c?
    5·1 answer
  • Which statement about Earth's core helps explain Earth's magnetic field?
    14·2 answers
  • What is a base used in toothpaste?
    15·1 answer
  • a. silicon<br> b. carbon <br> c. beryllium <br> d.chromium
    14·2 answers
  • Write a balanced nuclear equation for the following: The nuclide astatine-218 undergoes alpha emission to give bismuth-214
    14·1 answer
  • HELP ANYONE PLEASE PLEASE PLEASE ALSO IF THE ANSWER IS WRONG I WILL REPORT IT AND YOU WILL LOSE YOUR POINTS SO PLEASE CAN IT BE
    15·2 answers
  • CH3CHClCH(CH3)CH2CH2CH2CH2Br name the molecule iupac rules please
    10·1 answer
  • Calculate the density of the four solutions. All of the solutions has the volume equal to 25 ml. Red solution has 25.0 g of mass
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!