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
Katena32 [7]
3 years ago
10

Which of the following is an anion? A. O2- B. Mg2+ C. Al3+ D. H

Chemistry
1 answer:
Zigmanuir [339]3 years ago
3 0
Anions are ions that have a negative charge. Its charge is what we call as valence electrons.
The charge on the ion is written as a superscript after the element symbol. 
You can predict the negative charge on an ion by looking at the group number for the atom.
The charge for representative elements is typically equal to the group minus eight.
Therefore, the anion among the choices is letter A which is O^{2-}.
Oxygen is in group 6A. The negative charge is 6 - 8 = 2. The symbol is O^{2-} with the charge written as a superscript.
You might be interested in
Balance this equation C2H4 + O2 + CO2 + H2O ​
LenKa [72]

Answer: C₂H₄+3 O₂= 2 CO₂+ 2 H₂O

Explanation:

5 0
3 years ago
Can anyone tell me how to balance chemical equations
cupoosta [38]
count each atom of the reactants and the products
8 0
3 years ago
Read 2 more answers
_H2+O2=_H2O<br> balance help please
erastovalidia [21]
Both are 2
2H2+O2=2H2O
5 0
3 years ago
If 1/4 cups are in 1 serving jow many servings are in 4 cups​
mote1985 [20]

Answer:

One serving is 1/4 cup therefore 1 cup would be 4 servings. Since we have 9 cups we would then multiply 9 x 4 and the answer would be 36 servings. You have a ratio of cups to serving, so 1/4 cup : 1 serving, or .

Explanation:

7 0
3 years ago
Write your own example of how the carbon cycle works.
bulgar [2K]

Answer:

Under the picture

Explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • Earth has one moon and mars has two moons. how many more moons are found around the outer planets than the inner planets?
    12·2 answers
  • He dissolution of gases in water is virtually always exothermic because __________. a gases react exothermically with water b th
    9·1 answer
  • PLEASE HELP ME&gt; 50 points<br> Compare and contrast 2-methylbutane with pentane
    7·1 answer
  • 1. The density of a substance is 4.8 g/mL. What is the volume of a<br> sample that is 19.2 g?
    14·1 answer
  • Which equation represents the total ionic equation for the reaction of HNO3 and NaOH? Upper H superscript plus, plus upper O upp
    13·2 answers
  • Bacteria and fungi break down organisms into nutrients. They are known as
    10·1 answer
  • Describe how iodine can tell you if there is starch in a substance?
    9·1 answer
  • How many sigma and pi bonds are there in phenol?
    7·1 answer
  • Please help me I really need help
    5·2 answers
  • Some people have one sickle cell gene and one normal gene. They have few defctive cells and no symptoms because the sickle cell
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!