Ahomogeneous mixture or solution consists of

multiple phases
a single phase
substances in more than one phase
an uneven distribution of particles

Covalent network solids typically have melting points and boiling points. the chemical formula of a network solid indicates in the molecule.

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt

The molar mass of nickel(ni) is 58.7 g/mol. how many moles are in an 88 gram sample of nickel?