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
Lubov Fominskaja [6]
3 years ago
8

How do you know if a reaction is exothermic

Chemistry
2 answers:
melisa1 [442]3 years ago
7 0
When there is heat released
UNO [17]3 years ago
6 0
When heat is released 
You might be interested in
The anion formed from an oxygen atom is called a(n)
marta [7]
A. Oxygen ion
I am not sure but that's the right one I think. If I am wrong then I am sorry
6 0
4 years ago
The pH of a solution in which the concentration of H+ is 0.010M will be:
shusha [124]

B: 2

If it's right plz give brainliest lol <3

7 0
3 years ago
NEED HELP QUICK!!!!!!!!!!!!!!
denis23 [38]
The compounds that are produced upon this combustion reaction would be Carbon Dioxide and water.

CO2 = Carbon and Oxygen
H2O = Hydrogen and Oxygen.

The exact molecular amounts or moles can be determined by balancing this combustion reaction.
3 0
3 years ago
Read 2 more answers
What does conserving mass mean in a chemical equation?
Keith_Richards [23]
The answer would be C. Hope this helps
4 0
3 years ago
Read 2 more answers
balance the following reaction. a coefficient of "1" is understood. choose option "blank" for the correct answer if the coeffici
suter [353]

Balanced chemical reaction: 2KCl + Pb(NO₃)₂ → PbCl₂ + 2KNO₃.

According to principle of mass conservation, number of atoms must be equal on both side of balanced chemical reaction.  

KCl is potassium chloride.

Pb(NO₃)₂ is lead(II) nitrate.

KNO₃ is potassium nitrate.

PbCl₂ is lead(II) chloride.

3 0
3 years ago
Other questions:
  • You’re at the zoo and have a big red 1.80 L helium balloon. The barometric pressure today is 785 mmHg. Then you hear the roar of
    10·2 answers
  • What ia 45.76×0.25 please help
    11·2 answers
  • If the crucible is contaminated with the volatile impurities. While heating, the impurity is then burned off and removed. Descri
    7·1 answer
  • WHEN IN FRICTION not useful
    12·1 answer
  • Unknown # 21
    9·1 answer
  • Please help<br><br> 15 points
    8·1 answer
  • Please help me! I'm having trouble!
    8·2 answers
  • What is it called when only the needed genes are transcribed and translated in
    6·1 answer
  • The growth of the plants that the animal used for food could not keep up with the needs of the population. there was so little f
    14·1 answer
  • 14. Convert 4084 grams of NH3 kept at -40°C to Liters at STP. The density as a liquid is
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!