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
suter [353]
2 years ago
15

When a chemical reaction occurs,____.

Chemistry
1 answer:
dem82 [27]2 years ago
7 0

Answer:

when chemical bonds between atoms are formed or broken

You might be interested in
The proposed mechanism for a reaction is: Step 1: A + B X (fast) Step 2: X + C Y (slow) Step 3: Y D (fast) What is the overall r
PolarNik [594]

Answer:

(slow)xy2+z→xy2z (fast) c step1:step2:xy2+z2→xy2z2

Explanation:

Step1: xy2+z2→xy2z2 (slow)

Step2: xy2z2→xy2z+z (fast)

2XY 2 + Z 2 → 2XY 2 Z

Rate= k[xy2][z2]

 

When the two elementary steps are summed up, the result is equivalent to the stoichiometric equation. Hence, this mechanism is acceptable. The order of both elementary steps is 2, which is ‘≤3’; this also makes this mechanism acceptable. Furthermore, the rate equation aligns with the experimentally determined rate equation, and this also makes this mechanism acceptable. Therefore, since all the three rules have been observed, this mechanism is possible.

5 0
3 years ago
The movement of organisms into a range is called
Brrunno [24]
A. immigration, how is this chemistry?
8 0
3 years ago
Convert from moles to particles 6.02x1023 particles 1 mole Question 2. 2.7 moles of lithium Question 3. 1.8 moles of sodium chlo
spayn [35]

Considering the definition of Avogadro's number:

  • the number of molecules of lithium is 1.62621×10²⁴ molecules.
  • the number of molecules of sodium chloride is 1.08414×10²⁴ molecules.

<h3>Definition of Avogadro's number</h3>

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023×10²³ particles per mole. Avogadro's number applies to any substance.

<h3>Amount of molecules in this case</h3>

You can apply the following rule of three, considering the Avogadro's number:  If 1 mole of lithium contains 6.023×10²³ molecules, 2.7 moles of lithium contains how many molecules?

amount of molecules of lithium= (6.023×10²³ molecules × 2.7 moles)÷1 mole

<u><em>amount of molecules of lithium=1.62621×10²⁴ molecules</em></u>

Finally, the number of molecules of lithium is 1.62621×10²⁴ molecules.

On the other hand you can apply the following rule of three, considering the Avogadro's number:  If 1 mole of sodium chloride​ contains 6.023×10²³ molecules, 1.8 moles of  sodium chloride​ contains how many molecules?

amount of molecules of sodium chloride= (6.023×10²³ molecules × 1.8 moles)÷1 mole

<u><em>amount of molecules of sodium chloride=1.08414 ×10²⁴ molecules</em></u>

Finally, the number of molecules of sodium chloride is 1.08414×10²⁴ molecules.

Learn more about Avogadro's Number:

brainly.com/question/11907018

brainly.com/question/1445383

brainly.com/question/1528951

#SPJ1

4 0
2 years ago
A judge in a juvenile court can dispose a juvenile runaway to a residential facility.
ratelena [41]
The answer is true. I know this because it almost happened to me.

3 0
3 years ago
Read 2 more answers
Directions: Perform the Assessment in Module 7 because that will serve as your Performance Task for Module 5, 6 &amp; 7. Kindly
garik1379 [7]

please put your question completely....

8 0
3 years ago
Other questions:
  • The basic repeating structural unit of a crystalline solid is called a _____. cell unit base unit unit cell lattice
    7·1 answer
  • A sample of oxygen gas has a volume of 150.0 ml when its pressure is 0.947 atm. what will the volume of the gas be at a pressure
    6·1 answer
  • What type of hydrocarbon is 2-octene, and what about the structure allows 2-octene to be classified as this type of hydrocarbon?
    6·1 answer
  • Select the correct equalities for the units shown.
    6·2 answers
  • At what temperature will aluminum have a resistivity that is three times the resistivity of tungsten at room temperature? (Assum
    11·1 answer
  • What is the volume of an object whose dimensions are 5.54 cm, 10.6 cm, and 199 cm? Round your answer to the correct number of si
    7·1 answer
  • The Balmer series consists of the spectral lines from hydrogen for an electron making a transition from an excited state to the
    11·1 answer
  • What is Keq for the reaction 2HCl(9) = H2(g) + Cl2(g)?
    9·1 answer
  • 1. State how increasing the temperature of a gas changes its volume, assuming pressure is held
    10·1 answer
  • In unicorns, a heterozygous would have a rainbow tail
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!