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
Fudgin [204]
3 years ago
5

How do i know if a reaction is exo/endothermic?

Chemistry
1 answer:
oee [108]3 years ago
8 0

Answer:

You would if a reaction is exo/endothermic because an endothermic reaction soaks up heat. An exothermic reaction releases heat.

You might be interested in
Explain Rutherford Bohr model?
Liula [17]

Answer:

heya!!!

Explanation:

In atomic physics, the Rutherford–Bohr model or Bohr model, presented by Niels Bohr and Ernest Rutherford in 1913, is a system consisting of a small, dense nucleus surrounded by orbiting electrons—similar to the structure of the Solar System, but with attraction provided by electrostatic forces in place of gravity.

7 0
3 years ago
A sample of 10K gold contains the following: 10.0g gold, 4.0g silver, 5.0g copper, and 5.0g nickel. What is the percent gold in
stellarik [79]

Answer:

oook

hi I am so sorry sorry sorry sorry I don't no answer

Explanation:

but you follow me and give me brainliest ok by by by by

6 0
3 years ago
Read 2 more answers
What is the normal boiling point of etanoic acid?​
Nezavi [6.7K]

Answer: 244.6°F

Explanation:

3 0
3 years ago
Which of the following statements provides the BEST explanation for the many chemical similarities between two elements in a Mai
rjkz [21]

Answer:

(b) Both have the same number of valence electrons.  

Step-by-step explanation:

We find the most striking chemical similarities between two Main Group elements when they are in the same Group of the Periodic Table.

Elements in the same Group have the same number of valence electrons.

(a) is <em>wrong</em>, because elements in the same group have <em>different masses</em>.

(c) is <em>wrong,</em> because atoms with the same number of protons belong to the s<em>ame element</em>.

(d) is wrong, because elements in the same Group must be in . <em>different Periods.</em>

7 0
3 years ago
What is the atomic number of an atom?​
Romashka-Z-Leto [24]

Answer:

The atomic number of an atom is the number of protons in the nucleus or the number of electrons in a neutral atom

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Describe an experience you've had making or building something where the amount of each ingredient or building block came in fix
    12·1 answer
  • If the average salinity of seawater is 35ppt, how many grams of dissolved salts will 500g of seawater contain?
    10·1 answer
  • How to find change in enthalpy
    6·1 answer
  • How many phase rule variables must be specified to fix the thermodynamic state of each of the following systems? Show how you de
    15·1 answer
  • If a compound is separated into separate parts does the substance remain the same substance
    10·1 answer
  • The speed of light in a vacuum is constant. If the frequency of a light wave increases, what happens to the wavelength of the li
    8·1 answer
  • For a beryllium-gold voltaic cell containing Be2+(aq) and Au3+(aq) solutions, do the following. (a) Identify the cathode. (Inclu
    13·1 answer
  • Which of the following statements is true?
    15·2 answers
  • What is the difference between nuclear fusion and nuclear fission?
    9·1 answer
  • Please help me with these questions
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!