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
azamat
2 years ago
15

Please someone help WHATS the answer

Chemistry
1 answer:
blsea [12.9K]2 years ago
5 0
The average atomic mass: 40.078 u
electron configuration is the long list underneath the name "calcium" on the element. it starts with 1s^2s^2
You might be interested in
What is biodiversity? I don't really understand...
Vesnalui [34]

Answer:

it is also know as biological diversity

Explanation:

it refers to the varieties or various forms of plants and animals species

4 0
3 years ago
How would the amount of force needed to keep the kite in the air change if it were made out of a heavier material instead of a l
erik [133]
A: the amount of force would need to be greater.
5 0
3 years ago
Read 2 more answers
After the 1940s, the invention of _______ permitted wines to be produced in places where the climate was not ideal for wine prod
satela [25.4K]
<span>after the 1940, the infention of : PASTEURIZATION permitted wines to be produced in places where climate was not ideal for wine production after pasteurization process, all the microbes that exist within the wine are eliminated, which will prevent it from rottening. This make it possible to store wine for a long period of time even thought it's not in the harvesting climate</span>
5 0
3 years ago
Match the salt with the acid and base used to form it in a neutralizing reaction. K2SO4
emmasim [6.3K]

Answer:

KOH and H₂SO₄

Explanation:

Neutralization reaction:

It is the reaction in which acid and base react with each other and produce salt and water.

For example:

2KOH + H₂SO₄  →   K₂SO₄ + 2H₂O

1. Potassium hydroxide and sulfuric acid react to produce potassium sulfate salt and water.

2. Potassium hydroxide and phosphoric acid react to produce potassium phosphate and water.

H₃PO₄  + 3KOH  → K₃PO₄ + 3H₂O

3. Phosphoric acid sodium hydroxide react to produce sodium phosphate and water.

H₃PO₄  + 3NaOH   → Na₃PO₄ + 3H₂O

3 0
3 years ago
Read 2 more answers
A student titrates 10.00 milliliters of hydrochloric acid of unknown molarity with 1.000 m naoh. it takes 21.17 milliliters of b
Dima020 [189]
Mole ratio for the reaction is 1:1
no of moles in NaOH that reacted= 1*21.17/1000=0.02117mols
 molarity of HCl=0.02117*10/1000
                         =2.117M
4 0
3 years ago
Other questions:
  • What is the value of [oh–] in a 0.820 m solution of sr(oh)2?
    11·1 answer
  • A geologist wants to find more out more about a new discovery in his filed. What type of source should he consult
    15·1 answer
  • I have no clue pls help
    15·1 answer
  • Indicate whether each of the following statements is TRUE or FALSE 1. A sharp melting point for a crystalline organic material a
    6·1 answer
  • What is the difference between a universal law and a scientific theory?
    11·1 answer
  • "The combustion of ethylene proceeds by the reaction C2H4(g) + 3O2(g) → 2CO2(g) + 2H2O(g) When the rate of disappearance of O2 i
    8·1 answer
  • Calculate the energy of a photon of electromagnetic radiation whose frequency is 2.80×1014 s−1 .
    15·1 answer
  • Which best describes a compound such as magnesium oxide? an impure substance that is made up of two elements a mixture of two un
    14·2 answers
  • All the mixture are harmful for us. is this statement true? justify with two examples​
    15·2 answers
  • The decrease in the water table due to overuse of water.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!