Answer:
cylinder A has a higher density then cylinder B or more accurately the liquid in cylinder A is denser then the liquid in the second tube.
Explanation:
"Denser" simply means more matter is contained in the same space for example say you fill a tank with helium and another tank with water. Although they are the same size one will weigh much more because their is more particles or "stuff" inside the same area this can be because of a few things one it can be because the atoms or elements that compose the substance are heavier containing more electrons and protons in their orbit. or the molecular structure is more compact like a chicken wire fence has more wire in it then a barbed wire wire fence covering the same area because of the grid of wire in the middle.
Answer:
0.56M of acetate ions
Explanation:
Given parameters:
Mass of Ba(C₂H₃O₂)₂ = 69g
Volume of water = 970mL = 0.97dm³
Molar mass of Ba(C₂H₃O₂)₂ = 255.415g/mol
Unknown:
Concentration of acetate ion in the final solution = ?
Solution:
Let us represent the dissociation;
Ba(C₂H₃O₂)₂ = Ba²⁺ + 2C₂H₃OO⁻
We see that 1M of will produce 2M of acetate ions
Now, let us find the molarity of the barium acetate;
Molarity = 
Number of moles of Ba(C₂H₃O₂)₂ = 
Number of moles = 
= 0.27moles
Molarity of Ba(C₂H₃O₂)₂ = 
= 0.28M
since 1M of Ba(C₂H₃O₂)₂ will produce 2M of acetate ions
0.28M of Ba(C₂H₃O₂)₂ will produce 2 x 0.28 = 0.56M of acetate ions
The products and the reactants are the components of the reaction. The equation of phosphoric acid represents the decomposition reaction as it forms oxygen and water. Thus, option a is correct.
<h3>What is a decomposition reaction?</h3>
A decomposition reaction is a chemical breakdown of the reactant into two or more products. The large and complex compound breaks into smaller and simpler molecules.
The following equation, 4 H₃PO₄ → P₄ + 5 O₂ + 6 H₂O is an example of decomposition as phosphoric acid breaks into phosphorus, water, and oxygen molecules.
Therefore, option a. the reaction of phosphoric acid is a decomposition reaction.
Learn more about decomposition reaction here:
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The most abundant carbon isotope is carbon-12.
The relative atomic mass of carbon is 12.011, which is extremely close to 12.0. This means that the masses C-13, and C-14 are practically negligible when contributing to the relative atomic mass of carbon.
the C-12 isotope makes up 98.9% of carbon atoms, C-13 makes up 1.1% of carbon atoms, and C-14 makes up just a trace of carbon atoms as they are found in nature.
Answer:
this is because the van der waals forces or also known as induced dipole-dipole interactions increase because more electrons are present within an atom as you go down
Explanation:
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