sydmarie02
13.04.2021 •
Physics
A person travelled 350 m east from his home and returns back home an hour has displacement of_?
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Ответ:
vector of zero magnitude
Explanation:
The displacement is a vector magnitude, therefore, in addition to being a module, it has direction and sense.
In this case it moved 350 m and then returned the same 350 m, so the total displacement is zero.
If we draw the vector, one has a directional direction to the right and the other direction to the left, therefore when adding the two vectors gives a vector of zero magnitude
Ответ:
a. CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(g)
Explanation:
En la representación que tienes en la imagen puedes observar que el átomo de carbono es el que está de color negro, los átomos de hidrógeno están de color gris y los átomos de oxígeno de color rojo.
En la reacción, 1 molécula de CH₄ reacciona con 2 moléculas de O₂ produciendo 1 molécula de CO₂ (Un átomo de carbono y dos de oxígeno) y dos moléculas de agua (H₂O, un átomo de oxígeno y dos de hidrógeno).
Así, la reacción correctamente balanceada es:
a. CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(g)