Answer:

Explanation:
¡Hola!
En este caso, basado en la información dada, es posible conocer la masa de calcio en carbonato de calcio, que de hecho es la misma en la muestra, al utilizar el siguiente esquema de cálculo:

Finalmente, calculamos el porcentaje requerido como sigue:

¡Saludos!
B for sure, considering iron oxide is just fancy for rust.
Answer: a) Oak trees grow tallest between temperatures of 10 and 40 degrees
Explanation:
This hypothesis is specific, can be tested (though perhaps not easily), and is well set up.
Hope this helps! :)
I believe its because oxygen and carbon cant be sperated
Sulfur and sodium are those two elements