Which is true about fossil fuels? The statement that is
true about fossil fuels is Coal came
from swampy environments, while oil and natural gas came from open ocean
environments. The answer is letter B. The rest of the choices is not true for fossil fuel
Answer:
I don't know if this right or wrong but i think it is predecessor
Explanation:
maybe that is right
Answer:
For 6.50 mol NaOH - 1.44M.
For 6.50 g NaOH - C. 0.0361 M
Explanation:
For 6.50 mol NaOH.
Molarity = moles solute/L solution = 6.5 mol/4.5 L solution = 1.44 mol/L=1.44M
There is no such answer in given choices.
For 6.50 g NaOH
M(NaOH) = 23 + 16 + 1 = 40 g/mol
Molarity = 6.5g* 1 mol/40g *1/4.5L = 0.0361 mol/L = 0.0361 M
There is such answer. It is C.