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
Alecsey [184]
4 years ago
7

A cobalt ion has a charge of 2. how many electrons does it have?

Chemistry
2 answers:
olga2289 [7]4 years ago
7 0
In your question there no other number so 2
NISA [10]4 years ago
6 0
25 electrons
Because is a positive 2 so minus two.
27-2=25
You might be interested in
How many O atoms are in 4C₆H₁₂O₆
ipn [44]

Number of O atoms : 24

<h3>Further explanation</h3>

Given

C₆H₁₂O₆ compound

Required

Number of atoms

Solution

A molecular formula  shows the number of atomic elements in compound.  

The empirical formula is the smallest comparison of the atoms

Glucose-C₆H₁₂O₆ is composed of 3 elements, namely C, H, and O.

The number of atoms in a compound can usually be seen from the subscript number after the atom and the reaction coefficient shows the number of molecules

So number of O atoms :

= 4 x 6 = 24 atoms

6 0
3 years ago
How do you know if a reaction is endothermic?
Vikentia [17]
In an exothermic reaction, heat is produced along with products. But in endothermic reaction, heat is absorbed. If the number of products is less than the sum of the enthalpies of the reactants, the reaction will be exothermic. If the number of products is more than the sum of the enthalpies of the reactants, the reaction is endothermic.
6 0
3 years ago
Which state of matter has a constant volume, but changes shape?\?
never [62]
Liquids stays the same volume but the bonds are spaced out enough that it can take the shape of whatever container it’s in.
8 0
3 years ago
Which two structures would provide a positive identification of a plant cell under a microscope
katovenus [111]
Lysosome, central vacuole
7 0
3 years ago
Read 2 more answers
At room temperature, one of the molecules is a gas and one is a liquid. Identify which structure is a gas and which is a liquid.
scoundrel [369]
It starts at the bottom and then it goes up into the air as evaporation and that’s when the air gets cooler so gas is cooler and the liquid would be hotter
4 0
3 years ago
Other questions:
  • A _________ is the distance light travels in one year. How many miles is this?
    15·2 answers
  • What is the [OH-]if the pH of a solution 10.62
    10·1 answer
  • How fast is an airplane traveling that accelerates at a rate of 20 mph per second for 30 seconds?
    14·2 answers
  • In a phospholipid, the head is _____, and the fatty acid is _____. Please choose the correct answer from the following choices,
    13·1 answer
  • An experiment was conducted with a 1.57 gram starting mass of copper. How many grams of cooper were collected if the yield was 8
    8·1 answer
  • Mention the various ways by which soluble and insoluble salts are prepared
    10·1 answer
  • A chemist has discovered a drug that blocks phosphoglucoisomerase, an enzyme that catalyzes the second reaction in glycolysis. h
    9·1 answer
  • What mass of solid that has a molar mass 89.0 g/mol should be added to 100.0 g of benzene to raise the boiling point of benzene
    11·1 answer
  • Some of the physical properties used to distinguish between the three groups are: _________
    10·2 answers
  • 1. When _____ <br> are added or removed from an atom, _____<br> is formed
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!