Answer:

Explanation:
Hola,
En este caso, usando la ecuación del gas ideal, podemos calcular facilmente la presión a partir de:

Por lo que despejando para la presión obtenemos:

Así, calculamos:

¡Saludos!
The on that is considered a physical change is : A. Sawing a piece of wood in half
When you cut a piece of wood, the chemical compound within the wood will not change at all, which mean that it's a physical change
hope this helps
Answer: The mass of electrons is mostly ignored because electrons are extremely small compared to neutrons and protons.
Explanation: A proton is about 1,836 times the size of an electron.
On the periodic table, the atomic number for each element can be found. This number is found by measuring the weight of 6.02 x 10^23 atoms of the element in grams. Electrons aren't ignored when finding exact math, but for the sake of simplification high school teachers will generally have you only count the number of protons and neutrons when calculating the mass of atoms.
Yes that’s why we see it in different shapes all the time