Answer:
3 mol H2/2 mol N2
Explanation:
Mole ratios are basically from the numbers/coefficients in front of the element
1,2,1,4 are your coefficients
I think the answer is D. Diffusion
Answer:
The half - life of U 238 is about 4.5 billion years. As time passes, the ratio of Pb 206 to U 238 will increase and it is this which enables the age of the rock to be estimated
Explanation:
Answer:
24
Explanation:
You read at the bottom of the meniscus or curve and count.