Answer:the mass of the gases and ash should be equal the mass of the initial stack of newspapers, there are equal number of atoms on both sides
Explanation:no matter what form the newspaper would take the mass stays the same because all you did is burn it, conserve means that each atom's mass will stay the same no matter what.
Answer:
Analog signals are used to convert sound waves into electronic signals.
Explanation:
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MgCl2 is a ionic compound because it is formed by a metal (Mg) and a non-metal (Cl)
Answer:
the same as the products.
Explanation:
Law of conservation of mass states that the mass of the reactant is always the same as the products since they are not lost nor gained.
Answer:
The pH is 8,45 and it is basic.
Explanation:
The pH is a measure that gives us an idea of the acidity or alkalinity of a solution. It is calculated as:
pH = -log (H +)= -log (0.0000000035)=8, 46
The pH scale ranges from values of 0 to 14 (less than 7.0 is acidic and greater than 7.0 is basic, a pH = 7.0 is neutral).
In this case, the solution is basic (value greater than 7.0 ).
