When a material is heated, the kinetic energy of that material increases and its atoms and molecules move about more. This means that each atom will take up more space due to its movement so the material will expand. ... Some metals expand more than others due to differences in the forces between the atoms / molecules.
determine whether density can be classified as an intensive property. Examples of intensive properties include color, temperature, hardness, and density. In this lab density, the compactness of a substance, will be calculated for aluminum. Then by examining if the density is constant in five trials, which use various amounts of aluminum, the conclusion of whether density is indefinitely an intensive property for solid states of matter can be made.utilize two ionic compounds and facilitate a precipitation reaction in order to observe how the Law of Conservation of Mass applies to chemical processes, specifically, precipitation reactions
The balanced equation for the above reaction is; 2K + Cl₂ ---> 2KCl Stoichiomtery of K to KCl is 2:2 Potassium is the limiting reactant which is fully consumed in the reaction. The amount of product formed depends on amount of limits reactant present. Number of moles of K reacted - 6.75 g/ 39 g/mol = 0.17 mol Therefore number of KCl moles formed - 0.17 mol Mass of KCl formed - 0.17 mol x 74.5 g/mol = 12.67 g
The noble gases (Group 18) are located in the far right of the periodic table and were previously referred to as the "inert gases" due to the fact that their filled valence shells (octets) make them extremely nonreactive.
all planets have gravity because if they didnt, the gasses and whatever makes up the planet wouldnt be pulled down to the core of the planet, and it would just be floating around in space.
