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
Ronch [10]
3 years ago
7

Jamal is working with three ionic compounds: sodium chloride, calcium sulfide, and barium oxide. His teacher asks him which are

the positive ions in each compound. What should Jamal’s answer be? sodium, calcium, and barium barium, sulfur, and oxygen calcium, barium, and chlorine chlorine, sulfur, and oxygen
Chemistry
1 answer:
Lubov Fominskaja [6]3 years ago
4 0

Answer:

option A is correct  ( sodium, calcium and barium)

Explanation:

Given compounds:

Sodium chloride , calcium sulfide, barium oxide

We know that metals form positive ions. In order to solve the problem we must identify the metals from given compounds.

Na⁺Cl⁻

Ca²⁺S²⁻

Ba²⁺O²⁻

We can see that sodium, calcium and barium contain positive charges.

Thus option A is correct.

Because sodium have one valance electron. When it combine with chlorine sodium lose its one electron to complete the octet and chlorine accept it to complete its octet. Thus sodium form positive ion and chlorine form negative ion.

Similarly barium and calcium are present in group 2. Both have two valance electron. When they lose them cation are formed.

Other option are incorrect because,

Option B have sulfur and oxygen which are anion.

Option C have chlorine which is also anion

Option D have chlorine, sulfur and oxygen that are anions.

You might be interested in
Which diagram above has 4 valence electrons?
Gemiola [76]

Answer:

answer A has four valence electrons

Explanation:

The outer shell has 4 electrons, which are considered the valence electrons

8 0
3 years ago
Which of the gases in air are compounds? Explain how you can tell.
Eduardwww [97]

Answer:

\huge \underline\bold\red{Answer}

The air in the atmosphere consists of nitrogen, oxygen, which is the life-sustaining substance for animals and humans, carbon dioxide, water vapour and small amounts of other elements (argon, neon, etc.). Higher in the atmosphere air also contains ozone, helium and hydrogen.

5 0
3 years ago
Read 2 more answers
Which roles belong to decomposers? Check all that apply.
Crank

Answer:Decomposers break down waste and dead organisms.

Explanation:

Decomposers help keep the environment clean by acting on waste

8 0
3 years ago
Read 2 more answers
Which describes a stationary reference point?
kondaur [170]

Answer: C

Explanation:

7 0
3 years ago
How many neutrons does an element have if its atomic number is 42 and its mass number is 155? (10 Points)
sertanlavr [38]

The Element would have 197 neutrons

8 0
3 years ago
Other questions:
  • this a domain of prokaryotic cells possessing diacyl glycerol diester lipids in their membranes, bacterial RNA, no nuclear membr
    14·1 answer
  • In the number 12.345, the 1 is in what place
    8·2 answers
  • A certain amount of gas is trapped in a nonrigid container at atmospheric pressure. If the container is cooled and the gas in th
    14·1 answer
  • Which of the following include exact numbers?
    15·2 answers
  • Which would have the lowest input force?
    13·1 answer
  • What is the solvent in a sports drink that contains water, high fructose corn syrup, sodium chloride, and food coloring?
    8·1 answer
  • Oops accidentally wrote a question i dont need answered
    10·2 answers
  • Fix the formula for KF2<br> Write out the full correct formula?
    8·1 answer
  • Can anyone here help me with chemistry
    11·1 answer
  • 28. The IUPAC name for OH is
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!