Can water stay liquid below zero degrees Celsius?

In which situation can a mixture always be called a solution

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided

Why dose heating increase the speed at which a solution dissolved in water