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
Write the MOLECULAR EQUATION between iron and copper (II) sulfate.
Aleksandr-060686 [28]

Answer : The balanced molecular equation will be:

Fe(s)+CuSO_4(aq)\rightarrow FeSO_4(aq)+Cu(s)

Explanation :

Molecular equation : It is a balanced chemical reaction in which the ionic compounds are expressed as the molecules instead of component ions.

According to the question, when iron react with copper (II) sulfate then it react to give iron (II) sulfate and copper as a product. In this reaction, iron is more reactive metal than the copper metal. So, it can easily displace copper metal form the solution.

The balanced molecular equation will be:

Fe(s)+CuSO_4(aq)\rightarrow FeSO_4(aq)+Cu(s)

4 0
3 years ago
Explain what happens in a nuclear chain reaction
Vesnalui [34]

Answer:

Nuclear Chain Reactions. A chain reaction refers to a process in which neutrons released in fission produce an additional fission in at least one further nucleus. This nucleus in turn produces neutrons, and the process repeats. The process may be controlled (nuclear power) or uncontrolled (nuclear weapons).

Explanation:

7 0
3 years ago
Helppppppppppppppppppp
Lisa [10]

Answer:

I I'm pretty sure it's B I hope this helps

3 0
3 years ago
Which of the following is equal to 5,800,000,000 cm?
Reil [10]

Answer:

It would be 5.8 times 10^9cm

6 0
3 years ago
BRAINLIST IF ANSWERED
Sauron [17]

1: lift, thrust, drag, and weight

2:lift

3:thrust

4:up

5:thrust and drag

3 0
3 years ago
Other questions:
  • How many grams of Cu(OH)2 will precipitate when excess NaOH solution is added to 46.0 mL of 0.584 M CuSO4
    6·1 answer
  • Avogadro's number refers to ___. the maximum number of electrons that all of an atom's energy levels can accommodate the number
    14·2 answers
  • Blue light has a frequency of 6.98 • 10^14 Hertz. Calculate the wavelength of blue light in nanometers.
    9·1 answer
  • How is the sun involved in a food web?<br>​
    15·2 answers
  • . A 5.00 – g sample of lead is bluish-white in color and is very soft and malleable. It has a melting point of 327.4°C and a boi
    7·1 answer
  • Think about a neutral magnesium atom.Then think of a magnesium ion with a 2+charge.How are they different?
    8·1 answer
  • 19. Hexavalent chromium bonds with fluorine to form an ionic compound. What's the chemical formula and name for this compound
    13·1 answer
  • What is the atomic number of an element that has seven protons and eight neutrons and seven electrons?
    9·2 answers
  • What are the things to be considered in feeding of poultry birds ?​
    8·1 answer
  • In a combination reaction, 2.22 g of magnesium is heated with 3.75 g of nitrogen.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!