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
frutty [35]
3 years ago
5

True or false: The number of protons an element has can vary.

Chemistry
2 answers:
enot [183]3 years ago
7 0

Answer:

Yes

Explanation:

Every element has a unique amount of protons

Lerok [7]3 years ago
5 0

Answer:

true

Explanation:

You might be interested in
How many molecules are there in 65 g of silver nitrate (AgNO3)?
eimsori [14]
2.3*10^23 formula units
4 0
3 years ago
Read 2 more answers
Consider the reaction below to answer the following question: This reaction is an example of: A. A Michael reaction B. A Robinso
Anestetic [448]

The reaction is missing, so i have attached it.

Answer:

C. An intramolecular aldol condensation

Explanation:

From the attached image showing the reaction, we can see that the left hand side of the reaction has 2 carbonyl groups which are the double bonds attached to the oxygen atoms.

Now, on the right hand side, we can see that a six member ring has been formed.

This 6 member ring is produced because one of the carbonyls on the left hand side was deprotonated at the alpha position thereby serving as a nucleophile, which then attacks the carbon in the other carbonyl.

This process is possible because it underwent the processes of deprotonation, intramolecular aldol addition, proton transfer and elimination to yield the right hand side product which is ɑ,β-unsaturated carbonyl compound.

Thus, the correct answer is option C

4 0
3 years ago
Which coefficients balance the following?
Furkat [3]
The answer is D. (2,2,2,1)
5 0
3 years ago
Read 2 more answers
Which event is an example of an exothermic reaction?(1 point)
oksian1 [2.3K]

Combustion is a type of exothermic chemical reaction that generates light and heat in most cases, and occurs fairly quickly.

<h3>What is an exothermic reaction?</h3>

An exothermic reaction is one that when it occurs releases energy in the form of heat or light to the environment.

<h3>Characteristics of an exothermic reaction</h3>

  • When this type of reaction occurs, the products obtained have lower energy than the initial reactants.

  • Most of the exothermic reactions are oxidation, and when they are very violent they can generate fire, as in combustion.

  • Combustion is a very fast oxidation reaction that occurs between materials called fuels and oxygen.

Therefore, we can conclude that combustion is an example of an exothermic reaction that releases large amounts of heat, which can lead to fire.

Learn more about an exothermic reaction here: brainly.com/question/14969584

4 0
2 years ago
Read 2 more answers
What is propsed as evidence that supports the Big Bang Theory?
Stels [109]
The answer to your question is Hubble’s law
4 0
3 years ago
Other questions:
  • Calculate the mass in grams of 1.32x10^20 uranium atoms
    8·1 answer
  • 15 Ethanoic acid reacts slowly with calcium carbonate.
    8·2 answers
  • If you have a 2.50 mole sample of a substance, how many representative particles does this represent?
    13·1 answer
  • 1) Chemical reactions produce what
    5·1 answer
  • A solution is prepared by dissolving 150. grams of NaCl in 500 milliliters of water. What is the
    6·2 answers
  • Please help
    14·1 answer
  • Chemical changes are changes that involve a change in the chemical identity of a substance. In other words, a new chemical or su
    11·1 answer
  • Areas in Mexico and Central America are known as
    6·2 answers
  • State the difference between a conductor and an insulator.<br><img src="https://tex.z-dn.net/?f=%20%5C%5C%20%20%5C%5C%20%20%5C%5
    9·1 answer
  • Valance shell example..​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!