BaSO4 is the answer for this question i did the math
Answer:
total worth of all the gold: $3.64 E15 USD
Explanation:
- density (δ) = mass/volume
∴ mass gold = 4.0 E-10 g
∴ volume = 3.6 mL = 3.6 E-3 L
⇒ δ = 4.0 E-10 g / 3.6 E-3 L
⇒ δ = 1.111 E-7 g/L
if volume = 1.5 E21 L:
⇒ mass gold = (δ)(v)
⇒ mass gold = (1.111 E-7 g/L)(1.5 E21 L)
⇒ mass gold = 1.666 E14 g
∴ price gold = $21.84 USD/g
for all the gold in the world's oceans:
⇒ price gold = (1.666 E14 g)($21.84 USD/g)
⇒ price gold = $3.64 E15 USD
Answer:
Random movements of the dye and water molecules cause them to bump into each other and mix. Thus, the dye molecules move from an area of higher concentration to an area of lower concentration. Eventually, they are evenly spread throughout the solution. This means the molecules have reached a dynamic equilibrium.
Instructure › katyisd › filesPDF
Diffusion and Osmosis
Explanation:
found this online. hope this helps
The glass with the coolest surface temperture.
The mole is defined as the amount of substance that contains as many particles as there are atoms in in 12 grams of carbon. 
, n is number of moles, m is mass of atom in grams, M is the formula mass, hence neon has:
