An object weighing 89.7 g is placed in a graduated cylinder displacing the volume from 50.0 ml to 60.5 ml what is the g/cm

The density of an object is 8.54 g/mL

Explanation:

To calculate the mass of solution, we use the equation:

We are given:

Mass of an object = 89.7 g

Volume of an object =

Putting values in above equation, we get:

Hence, the density of an object is 8.54 g/mL

pie chart because it is in percents ( % )

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.