The volume of a rock sample is 8 cm3 and its density is 2 g/cm3 . What is the mass of the rock sample?

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

From the question

volume of rock = 8 cm³

density = 2 g/cm³

The mass of the rock is

mass = 2 × 8

We have the final answer as

Hope this helps you

16g

Explanation:

The formula is [ m = dv ] where d = density and v = volume.

m = 8 * 2

m = 16

Best of Luck!

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.