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
Nady [450]
3 years ago
15

What are the electrons for calcium

Chemistry
1 answer:
IRINA_888 [86]3 years ago
5 0
The traditional calcium atom has twenty protons and twenty electrons making it neutral.


The calcium in the pic is a calcium ion so the number of protons and electrons are not equivalent.


Since it's 2+ that means the ion is positively charged and for that to happen electrons are away.

So 20-2=18

There are 18 electrons
You might be interested in
Seedless plants can reproduce through asexual reproduction. T or F
Neko [114]
True..........................................................
4 0
3 years ago
Read 2 more answers
Describe the method to make pure, dry crystals of magnesium sulfate from a metal oxide and dilute acid.
emmasim [6.3K]

Answer:

H2SO4(aq) + MgO(s) → H2O(l) + MgSO4(aq)

Explanation:

We must recall that the oxides of metals are bases. These metal oxides can react with dilute acids to yield salt and water.

Bearing that in mind, we want to obtain magnesium sulfate from a metal oxide and dilute acid.

In this case we need magnesium oxide and dilute sulphuric acid. The reaction occurs as follows;

H2SO4(aq) + MgO(s) → H2O(l) + MgSO4(aq)

6 0
3 years ago
Which is most likely why many scientists reject the cold fusion theory?
Masja [62]
The answer is D. The cold fusion theory was first brought about by Stanley Pons and Martin Fleischmann in 1989. They claimed that their unintended experiment has produced enormous amounts energy at room temperatures that could only be explained by cold fusion theory. The experiment involved the electrolysis of heavy water (with deuterium rather than hydrogen isotope) on a palladium (Pd) electrode. Their claims had brought immense attention by scientists, however, subsequent replicative experiments attempts failed and some discredited the initial experiment.
8 0
3 years ago
Plastic is used to cover the copper wire in the power codes of appliances because plastic differs from copper in _________. 1. D
klio [65]

Answer:

Bro, its so obvious. Its electrical conductivity.

Explanation:

4 0
3 years ago
Read 2 more answers
The element least likely to form a bond is group
guapka [62]
Between phosphorous, sulfur, chlorine and argon, argon is the element that's the least likely to form an ionic bond with sodium.
7 0
3 years ago
Other questions:
  • In addition to the separation techniques used in this lab (magnetism, evaporation, and filtering), there are other commonly used
    6·1 answer
  • The synthesis of CH3OH from CO and H2 is represented by the equation below.
    12·1 answer
  • Look up the molecular weight of Lithium diisoproylamine and determine the amount of g of base needed for this experiment. Round
    13·1 answer
  • The transfer of energy in the form of invisible waves is
    5·1 answer
  • Which terms describe a substance that has a low melting point and poor electrical conductivity?
    11·1 answer
  • How is carbon dioxide released by animals? *
    12·2 answers
  • nter your answer in the provided box. Nitric acid (HNO3) is used in the production of fertilizer, dyes, drugs, and explosives. C
    8·1 answer
  • What is the noble gas electron configuration of bismuth (Bİ)?
    12·2 answers
  • Please help me, please i really need it :)
    11·1 answer
  • PLEASE HELP!
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!