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TEA [102]
3 years ago
10

State and explain the three laws of chemical combination​

Chemistry
1 answer:
Elden [556K]3 years ago
5 0

Answer:

  • law of conservation of mass
  • law of definite proportion
  • Avogadro's law

Explanation:

Law of conservation of mass ⇒ it states that matter can neither be created or destroyed.In a reaction the energy and the mass remain constant

Law of definite proportion ⇒ it states that samples of compounds will always contain the same proportion of elements by mass.proportion of elements by weight will always remain the same;meaning that percent by weight in elements will remain the same regardless of origin and quantity

Avogadro's law ⇒ it sates that under the same conditions of pressure and temperature, equal volumes of all gases contain the same number of molecules.if there is 500 ml of carbon and oxygen, they will have the same molecules if exposed to the same pressure and teprature level

                   Hope this helps,and if it helps mark as branliest thx

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Answer: no

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It could be dangerous since you don't know what substance are you adding.it may end up in an explosion

I hope this helps :)

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2 years ago
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What aqueous solution has the highest boiling point at standard pressure? A) 1.0 M KCl(aq) B) 1.0 M CaCl2(aq) C) 2.0 M KCl(aq) D
Lapatulllka [165]
The increase in the boiling point of a solvent is a colligative property.


That means that the increase in the boling point will be related to the number of particles (molecules or ions) present in the solution.


The higher the number of particles (molecules or ions) the higher the increase in the boiling point.


All the aqueous solutions presented are electrolytes, i.e. the solutes are ionic compounds.


Then, you have to compare the number of ions that you have in each solution.


A) 1.0 M KCl ---> 1.0 M K+     +      1.0 MCl-    = 2 moles of particles / liter


B) 1.0 M CaCl2 --> 1.0M Ca(2+)      +      1.0M * 2 Cl (-)    = 3 moles of particle / liter


C) 2.0M KCl ---> 2.0 M K+      +      2.0 M Cl-  = 4 moles of particle / liter


D) 2.0 M CaCl2 ----> 2.0 M Ca (2+)      + 2.0M * 2 Cl (-)  = 6 moles of particle / liter.


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5 0
3 years ago
Given 7.45 g of butanoic acid and excess ethanol, how many grams of ethyl butyrate would be synthesized, assuming a complete 100
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The equation for the reaction is:

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Now you see that the number of the moles of butanoic acid and etyl butyrate is equal in

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number of moles of C₄H₈O₂ = number of moles of C₆H₁₂O₂

mass of C₄H₈O₂/ Molar mass of C₄H₈O₂ = mass of C₆H₁₂O₂/ molar mass of C₆H₁₂O₂

mass of C₆H₁₂O₂ = molar mass of C₆H₁₂O₂ x mass of C₄H₈O₂/ Molar mass of C₄H₈O₂

Now, assuming <span>100% yield, the mass of ethyl butyrate produced is: </span>

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3 0
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4 0
3 years ago
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