In getting the concentration of the substance that has an aqueous solution of a fluoride of 0.039M, the density doesn't matter anymore you just have to multiply its solution to its molar mass that would came up to 0.7409g and then do the conversion that could lead to a 0.07409%(m/m). I hope you are satisfied with my answer and feel free to ask for more
Answer:
23 & 13
Step-by-step explanation:
23+13=36
8m - 5n + 2m + 6n =Simplifying
8m + -5n + 2m + 6n = 0
Reorder the terms:
8m + 2m + -5n + 6n = 0
Combine like terms: 8m + 2m = 10m
10m + -5n + 6n = 0
Combine like terms: -5n + 6n = 1n
10m + 1n = 0
Solving
10m + 1n = 0
Solving for variable 'm'.
Move all terms containing m to the left, all other terms to the right.
Add '-1n' to each side of the equation.
10m + 1n + -1n = 0 + -1n
Combine like terms: 1n + -1n = 0
10m + 0 = 0 + -1n
10m = 0 + -1n
Remove the zero:
10m = -1n
Divide each side by '10'.
m = -0.1n
Simplifying
m = -0.1n.
Answer: 5/7. So B
Step-by-step explanation:
Answer:
12 remainder 3 (or 12.3)
Step-by-step explanation:
123/10=12.3
you can't really have .3 of a book, so 12 remainder 3 or three groups of 13 and 7 groups of 12.
