Answer is: new concentration is 0,168 mg/mL.
d(solution) = 0,842 g/L.
V(solution) = 0,2 mL = 0,0002 L.
V(water) = 0,8 mL.
V₁(solution) = V(solution) + V(water).
V₁(solution) = 0,8 mL + 0,2 mL = 1 mL.
m(solution) = 0,0002 L · 0,842 g/L · 1000.
m(solution) = 0,168 mg.
d₁(solution) = m(solution) / V₁(solution).
d₁(solution) = 0,168 mg/mL.
A mole of CO2 = 2 moles of O2
8 CO moles x 2 =
16 moles
Answer:
you can use the example of two magnets
Answer:
elements:4
Atoms:7
Explanation:
Elements: Na (Sodium), H (Hydrogen), C (Carbon), and O (Oxygen)
Atoms: 2*Na (Sodium), 1*H (Hydrogen), 1*C (Carbon), and O (Oxygen)*3
Answer:
vaporize the liquid water
Explanation:
Since you don't have to heat ice that much to become liquid water, and you
need it to be like 252 Fahrenheit to vaporize (or evaporate) water, you need the atoms to move a lot more to evaporate water than to melt ice.