25/2 and 96/X
CROSS MULTIPLY.
2x=2,400.
divide by 2.
x=1,200.
you take the GIVEN MASS of an element, and you put it on top, the coefficient is what it’s over. i believe this is right
B. Shrimp burrow.
Explanation:
A trace fossil is a fossil left by the animal, such as a foot print or a burrow. It is not part of the actual animal.
It is made of polar molecules
Answer:
D. 2:5
Explanation:
It has 5 valency electrons

Dios mío, vaya, eso es una locura, no lo sabía, pero gracias por la información. :)