Answer:- 47.62 mL
Solution:- It is a dilution problem where we are asked to calculate the volume of 15.75 M perchloric acid solution required to make 500.0 mL of 1.500 M solution.
For solving this type of problems we use the dilution equation:

Where,
is the concentration of the concentrated solution and
is it's volume.
is the concentration of the diluted solution and
is it's volume. Let's plug in the values in the equation and solve it for
.

On rearranging this for
:


So, 47.62 mL of 15.75 M perchloric acid are required to make 500.0mL of 1.500 M solution.
Mixture because your pouring something into it then stirring it i don’t know.
Oxygen and Hydrogen would most likely form a covalent bond that is polar, or a polar covalent bond. Due to the electronegativity difference between the 2 elements, unequal sharing of the valence electrons will occur, electrons being in closer proximity to Oxygen and farther away from Hydrogen. Resulting in the characteristic partial positive and negative charges to appear for the respective elements.
In an automobile engine, fuel is burned to convert chemical energy into __ energy. This energy is then changed into __ energy.
1 ) Heat
2 ) Mechanical
"In an automobile engine, fuel is burned to convert chemical energy into "heat" energy. This energy is then changed into "mechanical" energy"
(Goes from Chemical energy, heat energy, to mechanical energy.)