The volume of an object is 4cm3 and its mass is 42g. What is its density?

1.05 x 10^-2 kg/cm3

Explanation:

Given that,

volume of object = 4cm3

mass of object = 42g

Since the standard unit of mass is kilograms, convert 42g to kilograms

(If 1000 grams = 1kg

42 grams = 42/1000 = 0.042kg)

density of object = ?

Recall that density refers to mass per unit volume. So, apply the formula density (p) = mass (m) / volume (V)

p = 0.042kg / 4cm3

p = 0.0105 kg/cm3

Place the value of density in standard form

p = 1.05 x 10^-2 kg/cm3

Thus, the density of the object is 1.05 x 10^-2 kg/cm3

hey there!

boiling point is the temperature at which the vapor pressure of the liquid equals atmospheric pressure. the vapor pressure of solvent molecules is decreased when a solute is added, so a higher temperature is required to increase the number of solvent molecules in the gas phase above the liquid.

at the freezing point, the vapor pressures of the solid and liquid are equal; a lower temperature is needed to reduce the number of solvent particles above the liquid.

hope this you

tobey

8

explanation:

each principal energy level above the first contains one s orbital and three p orbitals. a set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. therefore, the second level can contain a maximum of eight electrons - that is, two in the s orbital and 6 in the three p orbitals.

mark brainliest and have a great day!