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
weqwewe [10]
3 years ago
10

How do u get the formulae for sodium oxide​

Chemistry
2 answers:
Maslowich3 years ago
5 0

Answer:

The Chemical formula of sodium is Na.

The Chemical formula of oxide is O.

Explanation:

Therefore we know that the term 'valency' is called as the combining capacity of an atom of an element.

So by taking the valency of Sodium and  Oxide, we get  

Sodium with valency '1' and Oxide with valency '2'.

Na         O

1             2

When you cross over you get 'Na2O' as the formula for sodium oxide.

Hope this is helpful for you!

Don't forget to rate or give brainliest answer.!!

TY.

lesya [120]3 years ago
5 0

Answer:

The formula is gotten by exchange of valency between Na and O

Explanation:

To obtain the formula of a compound form by two elements, we must bear in mind their valency

Sodium(Na) has 1 valency

Oxygen(O) has 2 valency

For Na and O to form compound, they will exchange their valency i.e Na will give O is 1 valency and O will give Na it's 2 valency as shown below

Na + O —> Na2O

You might be interested in
Which part of a nuclear power plant spins to produce mechanical energy?
OLga [1]
The turbine since the definition of this word is <span> a machine for producing continuous power in which a wheel or rotor, typically fitted with vanes, is made to revolve by a fast-moving flow of water, steam, gas, air, or other fluid. </span>
7 0
3 years ago
Photosynthesis can be represented by6CO2(g)+6H2O(l)⇌C6H12O6(s)+6O2(g)Which of the following will be false when the photosynthesi
denis-greek [22]

Answer:

The concentration of O2 will begin decreasing and The concentrations of CO2 and O2 will be equal.

Explanation:

Equilibrium occurs when the velocity of the formation of the products it's equal to the velocity of the formation of the reactants, thus the concentrations of the compounds remain constant.

Analyzing the information and the reaction given, we can notice that in equilibrium the rate (velocity) of formation of O2 (product) is equal to the rate of formation of CO2 (reactant).

As the CO2 and H2O are placed in the reaction, the Le Chateliêr's principle states that the equilibrium must shift to reestablish the equilibrium, thus, they must be consumed, and the concentration of O2 must increase.

As state above, in equilibrium, the concentrations didn't change, thus, the concentrations of CO2 and O2 will not change.

The concentrations of CO2 and O2 depends on the rate of the reaction and the initial quantities presented, so it's not possible to affirm they'll be equal.

8 0
3 years ago
The best electrolyte solutions are A. dilute B. concentrated C. saturated
Rudiy27
The correct answer is A.) dilute
8 0
3 years ago
How are an atoms chemical properties determined?
TiliK225 [7]
Electrons determine the chemical properties. Protons and neutrons are in the nucleus the number of protons determines the number of electrons of an atom
5 0
3 years ago
When 5.00 g of Al2S3 and 2.50 g of H2O are reacted according to the following reaction: Al2S3(s) + 6 H2O(l) → 2 Al(OH)3(s) + 3 H
Debora [2.8K]

Answer:

Y=58.15\%

Explanation:

Hello,

For the given chemical reaction:

Al_2S_3(s) + 6 H_2O(l) \rightarrow 2 Al(OH)_3(s) + 3 H_2S(g)

We first must identify the limiting reactant by computing the reacting moles of Al2S3:

n_{Al_2S_3}=5.00gAl_2S_3*\frac{1molAl_2S_3}{150.158 gAl_2S_3} =0.0333molAl_2S_3

Next, we compute the moles of Al2S3 that are consumed by 2.50 of H2O via the 1:6 mole ratio between them:

n_{Al_2S_3}^{consumed}=2.50gH_2O*\frac{1molH_2O}{18gH_2O}*\frac{1molAl_2S_3}{6molH_2O}=0.0231mol  Al_2S_3

Thus, we notice that there are more available Al2S3 than consumed, for that reason it is in excess and water is the limiting, therefore, we can compute the theoretical yield of Al(OH)3 via the 2:1 molar ratio between it and Al2S3 with the limiting amount:

m_{Al(OH)_3}=0.0231molAl_2S_3*\frac{2molAl(OH)_3}{1molAl_2S_3}*\frac{78gAl(OH)_3}{1molAl(OH)_3} =3.61gAl(OH)_3

Finally, we compute the percent yield with the obtained 2.10 g:

Y=\frac{2.10g}{3.61g} *100\%\\\\Y=58.15\%

Best regards.

7 0
3 years ago
Other questions:
  • Why don't we estimate an additional number on an electrical balance?​
    12·1 answer
  • Type your response in the box.
    7·1 answer
  • What is it called when an atom has the same number of protons but a different number of neutrons?
    10·2 answers
  • ____ is a poor conductor of heat A. aluminum B.iron C. ceramic D. zinc
    12·1 answer
  • Which of the following is soluble in water?
    11·1 answer
  • Is sandy, silt, or clay loam better? and why?
    12·1 answer
  • Arrange the substances in the table from the MOST to the LEAST ordered particle arrangement
    11·2 answers
  • The purpose of photosynthesis is to produce usable chemical energy or glucose from solar energy. If the formula for glucose is C
    5·1 answer
  • Latent heat is used to: 1. form chemical bonds. 2. change molecular structure. 3. change states of matter. 4. change the tempera
    8·1 answer
  • True or False: Passive transport occurs when molecules move from an area of low concentration to high concentration.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!