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
kap26 [50]
3 years ago
5

Does adding coefficients to a chemical equation disobey the law of definite proportions? Explain your answer.

Chemistry
1 answer:
Temka [501]3 years ago
3 0

Answer:   No

Explanation:

- Law of definite proportions is a case from the Law of conservation of energy (matter) which states that "mass can neither be created nor destroyed, but changed from one form to another."

-  Adding coefficients to a chemical equation confirms that there is the same number of atoms on both sides of a reaction; therefore, matter has not been created or destroyed but reorganized to give new substrates.

Example :             2 Mg + O2 → 2 MgO              

In the balanced equation above, 2 moles of Mg reacts with 1 mole of O2 to produce 2 moles of MgO.

mass of 2 moles of Mg  = 24×2= 48 grams

mass of 1 mole of O2 = 16+16 = 32 grams

total mass of reactants = 48 + 32 = 80 grams


mass of 2 moles of MgO = (24+16) ×2 = 80 grams  

total mass of products = 80 grams

It is clear that the number of grams of matter before and after the reaction is the same and  equals to 80 grams, so obeys the law of definite proportions..


You might be interested in
PLZ HELP I WILL GIVE U BRAINLEST PLZ HELP!!!!!!!!!!
sergeinik [125]
My answer is A. I'm probably wrong. in bad in this subject
7 0
3 years ago
Read 2 more answers
Which sequence represents the relationship between pressure and volume of an ideal gas as explained by the kinetic-molecular the
Nutka1998 [239]
Boyle's law which plays a major role in the kinetic-theory states that Volume and Pressure are inversely proportional 
4 0
3 years ago
Read 2 more answers
Lead has a density of 11.29 g/mL. If you had 186 g of lead, what would its volume be?
Varvara68 [4.7K]
I think you just do 11.29 multiplied by 186 since to find density you divide mass by volume. So 186 divided by x is 11.29. So in conclusion the volume would be 2,099.94mL
8 0
3 years ago
How can you make clay float in water?​
erastovalidia [21]
To make clay float in water you have to shape it into something wide enough and roughly bowl-shaped so that it can displace enough water to compensate for its mass, just like a real boat.
7 0
3 years ago
What type of bond is H2Se
Vinvika [58]

Answer:The lone pair of electrons takes up more space than a regular bonding pair since it it is not confined to be between two atoms, so it adds coulombic repulsion to the bonding pairs and compresses the angle. Therefore, the bond angle is less than the standard 109.5∘ . It is actually 97.7∘

6 0
3 years ago
Other questions:
  • Gas y effuses half as fast as o2. what is the molar mass of gas y?
    14·1 answer
  • How is chemical and physical properties of matter like in different
    15·1 answer
  • Calculate the energy in joules and calories required to heat 25.0 g of water from 12.5C to 25.7C
    14·1 answer
  • Calculate the mole fraction of methane in the inital mixture assuming the temperature and volume remain constant
    13·1 answer
  • 12 the products of the neutralization reaction between hydrochloric acid and magnesium hydroxide are
    10·1 answer
  • Suppose you used 2.613 g of THAM to make the 250 mL THAM solution and it took 38.58 mL of your unknown HCl solution to reach the
    12·1 answer
  • Find the perimeter of the square and then convert the answer to meters
    11·1 answer
  • What is the purpose of the periodic table?
    10·1 answer
  • How much does the Earth weigh?​
    10·2 answers
  • 2. Does the aluminum sample (the can) contain more than, (less than or exactly one mole of aluminum? Support answer with calcula
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!