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
timama [110]
2 years ago
13

Which best explains why a firework being ignited is an example of an exothermic reaction and not an endothermic

Chemistry
1 answer:
snow_lady [41]2 years ago
4 0
The fireworks give off heat
You might be interested in
Describe at least three things that occur naturally everyday and how science has had an impact on what we think or do about them
zvonat [6]

Answer:

Fire

Explanation:

..............................

6 0
3 years ago
To prevent tank rupture during deep-space travel, an engineering team is studying the effect of temperature on gases confined to
uranmaximum [27]

Answer: 63.88 atm

Explanation:

To answer this, we use the formula PV = nRT since the asumption is that the gas has an ideal behavior

where number of mole = 2.60 mol, R(gas constant) = 0.08205746 L atm/K mol,

T = 251 ∘C = (251 + 273) K = 524 K, Volume = 1.75 L

Making Pressure the subject of the formula, we have

P = nRT/V = 2.6 * 0.08205746 * 524/2.75 = 63.88 atm

6 0
3 years ago
A theory is a well-established, data-backed idea that has been shown true many times but cannot be 100% proven
mafiozo [28]

Well if you were asking it was a true or false questions the answer is: True

4 0
3 years ago
Select the single best answer.<br><br> Predict the pH (&gt; 7, &lt; 7, or = 7) of a LiHCO3 solution.
tiny-mole [99]

Answer:

LiHCO3 its PH >7

Explanation:

the real ph for it is 11.3 so it makes it more than 7

and if you know it is a conjugate base coming from the weak acid H2CO3 so LiHCO3 is a base

4 0
4 years ago
Name the following alkenes using systematic names.
swat32
Idkvfffftttttf yyyrrr
3 0
4 years ago
Other questions:
  • Which describes the composition of the ocean floor?
    10·2 answers
  • Name a object and its material (matter)
    7·2 answers
  • Which best describes the importance of the microscope to the development of the cell theory?
    15·1 answer
  • The brain receives information as ___
    8·2 answers
  • BRAINLY I NEED PLS ASP! Its science I NEED HELP PLS
    10·2 answers
  • The area where the river enters the larger body of water is known as a
    15·2 answers
  • How do balanced equations demonstrate the law of conservation of mass?​
    15·1 answer
  • Jesse watches the sun rise at 6:00pm what time will the sun set
    5·1 answer
  • Help me pleaseeeee<br> JejaJen she fiabais an duende
    5·1 answer
  • What is an Atom in ​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!