An unknown material has a mass of 5.75 g and a volume of 7.5 cm3. what is the density of the material? round to the nearest tenth. a. 0.8 g/cm3 b. 8 g/cm3 c. 0.7 g/cm3 d. 1.3 g/cm3

Hey there!:

Mass = 5.75 g

Volume = 7.5 cm³

Therefore:

Density = mass / volume

D = 5.75 / 7.5

D = 0.7 g/cm³

Answer C

Hope that helps!

answer: they produce more slow than unicellular organisms.

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l