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
just olya [345]
2 years ago
14

A calcium atom has 20 protons, 20 electrons, and 20 neutrons. When calcium forms a positive two ion it's new composition is

Chemistry
1 answer:
miss Akunina [59]2 years ago
6 0

Answer:

40

Explanation:

I'm not sure

You might be interested in
4. Write the chemical equation for the reaction that occurs when baking soda (NaHCO3) is
aev [14]

Answer: HCl+NaHCO₃=NaCl+CO₂+H₂O

Explanation:

3 0
3 years ago
What is the gasoline doing to our environment?
luda_lava [24]
Gasoline use contributes to air pollution
Gasoline is a toxic and highly flammable liquid. The vapors given off when gasoline evaporates and the substances produced when gasoline is burned (carbon monoxide, nitrogen oxides, particulate matter, and unburned hydrocarbons) contribute to air pollution. Burning gasoline also produces carbon dioxide, a greenhouse gas.
5 0
3 years ago
When 4.50 L of hydrogen gas react with an excess of nitrogen gas at standard temperature and pressure, how many liters of ammoni
VARVARA [1.3K]

Answer:

           3.0 L of NH₃

Solution:

The equation is as follow,

                                    N₂  +  3 H₂     →       2 NH₃

According to equation,

          67.2 L (3 mole) H₂ at STP produces  =  44.8 L (3 mole) of NH₃

So,

                            4.50 L of H₂ will produce  =  X L of NH₃

Solving for X,

                     X  =  (4.50 L × 44.8 L) ÷ 67.2 L

                     X  =  3.0 L of NH₃

5 0
4 years ago
How many atoms of oxygen are in a molecule of glucose (C6H12O6)?
ICE Princess25 [194]

Answer:

There are 6 oxygen atoms.

Explanation:

Glucose has a chemical formula of: C6H12O6 That means glucose is made of 6 carbon atoms, 12 hydrogen atoms and 6 oxygen atoms.

hope this helps

8 0
3 years ago
Should mammoths be re-created and released into the Arctic ecosystem
Maslowich
It honestly depends weather or not they create them the same way 

8 0
4 years ago
Read 2 more answers
Other questions:
  • Which group of the periodic table had the elements with the lowest first ionization energies
    11·1 answer
  • In a soil profile, which is the second layer?<br> solid rock<br> subsoil<br> parent rock<br> topsoil
    13·1 answer
  • Which elements can form basic compounds?
    8·1 answer
  • What type of circuit is illustrated
    10·1 answer
  • Explain how the equation for GPE = force x distance.
    12·1 answer
  • Balance the following equations:
    8·1 answer
  • How many moles are in 0.0723 atoms of Iron. Fe?-
    10·1 answer
  • How many days does it take 16.Og of Gold-198 to decay to 1.0g? (each half-
    10·1 answer
  • A force that is opposite to motion of a falling object?
    12·1 answer
  • Which statement is true about a reaction represented by a chemical equation that shows energy as a reactant?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!