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coldgirl [10]
3 years ago
15

Yggvvvvvvcffffyyhbbvvcc

Chemistry
2 answers:
mojhsa [17]3 years ago
8 0
Yggvvvvvvcffffyyhbbvvcc
Natali5045456 [20]3 years ago
6 0
Ygggvvvcfffhbbvvcc?!
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Agnesium, calcium, and strontium are examples of ____________.
Ber [7]
D: alkaline earth metals
6 0
3 years ago
A balanced reaction equation must have the same number of atoms of each element on both sides of the equation. The reaction C2H5
Aleks04 [339]
<h3>Answer:</h3>

Atoms of elements on the reactants side

  • 2 Carbon atoms
  • 6 Hydrogen atoms
  • 7 Oxygen atoms
<h3>Explanation:</h3>
  • The equation; C₂H₅OH+ 3O₂ →2CO₂+ 3H₂O is balanced.
  • A balanced chemical equation has an equal number of atoms of each element on either side of the equation.
  • For example, in the equation given, the number of atoms of each element is equal on both sides of the equation.
  • There are 2 carbon atoms, 6 hydrogen atoms, and 7 hydrogen atoms on either side of the equation.
  • According to the law of conservation of mass, the mass of the reactants should be equal to the mass of reactants.
  • Therefore, chemical equations are balanced for them to obey the law of conservation of mass.

6 0
4 years ago
What were the limitation of debereiner's law of traid​
jok3333 [9.3K]
Dobereiner could find only three triads; . i.e total of 9 elements only. However the total number of elements were more than that of those encompassed in Dobereiner's Triad. Thus, Dobereiner's could not be classify most of the elements known at that time
4 0
4 years ago
The main reasons why h2co has a higher vapor pressure at a given temperature when compared to ch3oh is that h2co
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You know that each carbon atom can take as much as 4 bonds with other elements. A hydrogen can only take one bond, while an oxygen can take 2. Thus, the chemical formula of H₂CO may be written as H₂C=O which is acetaldehyde. Acetaldehyde is an aldehyde. It has a higher vapor pressure because aldehydes have much stronger bonds than hydrogen bonds in alcohols. Hence, it would need a lot energy, thus higher vapor pressure, to break the bonds of an aldehyde than it would for an alcohol.
6 0
3 years ago
How will the temperature change if you increase the mass of the gas molecules?
JulijaS [17]
In a hot gas, the molecules move faster than in a cold gas; the mass remains the same, but the kinetic energy, and hence the temperature, is greater because of the increased velocity of the molecules. ... We can sense that one gas is hotter than another gas and therefore has a higher temperature.
4 0
3 years ago
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