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
Firlakuza [10]
2 years ago
14

Please help only one question. will mark brainliest if solved​

Chemistry
2 answers:
mel-nik [20]2 years ago
8 0

Answer:

c i think

Explanation:

look at the first one on a the bubble has a e on the side

mamaluj [8]2 years ago
3 0
Answer : C
Explanation: If you look at the isotopic symbol there’s 2 protons on both so on each atom there should be 2 protons
You might be interested in
Which of the following statements about electric charges and magnetic domain is true?
saw5 [17]
The correct answer is C. Magnetic domains must come in pairs one north one south. I took the test.
3 0
2 years ago
Read 2 more answers
Name three pure elements and three pure compounds​
VARVARA [1.3K]

Answer:

Pure elements:

Hydrogen(H)

Nitrogen(N)

Magnesium (Mg)

Pure Compounds:

Oxygen gas(O2)  

Water (H2O)  

Ammonia (NH3)

Explanation:

Hope it helps.Please mark me brainliest.^-^

5 0
2 years ago
Characteristics of matter that cannot be changed are called
olchik [2.2K]
It is called Mass.

Among the physical characteristics of a matter which includes Weight, Mass, Volume, and Density the only characteristic that does not change is the mass. The mass of an object never change from place to place. All the objects have a mass and that is why there is a weight but it changes depends on the gravity. Mass don't.
5 0
3 years ago
50 POINTS*** Which of the following is not a correct chemical equation for a double displacement reaction?
hammer [34]
I mostly believe in between D and B beacuse K3po4 and caco3 is not an element equation

4 0
2 years ago
Read 2 more answers
The antibiotic prontosil, developed by bayer pharmaceuticals in 1932, was used in saving the life of president roosevelt's son f
Alja [10]

Prontosil is a compound produced by the coupled reaction of an aryldiazonium ion and an aromatic compound.

<h3>What are diazonium compounds?</h3>

These are organic compounds in which there are ionic interactions between the azo group (-N₂⁺) and an anion X⁻.

The general structure is RN₂⁺X⁻.

  • R is the lateral chain that might be an aromatic ring, among other options.
  • N₂⁺ is the azo group
  • X⁻ is the anion

The azo group characterizes as being unstable and reactive. This property is because one of the N atoms has a positive charge.

-N⁺≡ N

<h3>What is the coupling reaction of aryldiazonium compounds?</h3>

Aryldiazonium salt reactions can occur in two ways,

  • Substitution reactions
  • Coupling reactions

Coupling reactions are the aromatic electrophilic substitution, where the aryldiazonium ion acts as an electrophile for an activated aromatic compound to attack it.

The coupling reaction occurs at the azo group level.

In the exposed example,

  • the benzene ring with sulfur bonded to oxygen atoms is the coupling component
  • the benzene ring with NH₂ and the azo group is the diazonium ion

In the attached files you will find the drawings.

You can learn more about diazonium compounds at

brainly.com/question/9061271

brainly.com/question/9389852

brainly.com/question/13147442

5 0
2 years ago
Other questions:
  • What does two bonded flurione atoms form?
    8·1 answer
  • A car travels 500km in 9 hours. How fast was it going
    11·1 answer
  • Traits that organisms acquire, or learn, during their lifetime will be passed on to their offspring. True False
    12·1 answer
  • Element Y has a half-life of 120 years. If you started off with a sample of 280 atoms of Element Y, how many would be left
    7·1 answer
  • urgent please help!!!!!! Which factors add to the greenhouse effect and are caused by human activities? Select two options. a de
    15·1 answer
  • !!!!HELP ASAP!!!! How does the scientific method help scientists?
    10·2 answers
  • How many bonds are present in HCI?<br><br> a) 1<br> b) 3<br> c) 4<br> d) 2
    10·2 answers
  • Some properties, like boiling point elevation and freezing point depression, change in solutions due to the presence and number
    6·2 answers
  • What does the NaBr + Cl₂ represent<br> in the reaction?<br> NaBr + Cl₂ →&gt;&gt;<br> NaCl + Br₂
    6·1 answer
  • Zinc Sulfide reacts with oxygen according to the reaction:
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!