Which of the following is true about a change from a solid to a liquid?

The particles speed up.

The particles slow down.

The particles remain at the same energy level.

The particles get closer together.

Which best describes a semiconductor? Semiconductors are more conductive than a nonmetal and less conductive than a metal. Semiconductors are more conductive than a nonmetal and less conductive than a metalloid.

How many lead atoms are in a cube of lead that has a volume of 2.18 cm3 if the density of lead is 11.3 g/cm3?

The two products that are formed when a solution of HNO3 and a solution of NaOH react are water and 1. NaNO2. 2. NaNO3. 3. NaHNO. 4. NaHNO3.

Describe 3 methods to increase the rate of dissolution for sugar in a cup of tea

What is the hydroxide ion concentration of the lake described in question 3?

Originally, the periodic table was arranged by increasing atomic radius increasing atomic mass increasing atomic number increasing number of electrons

How many moles are in 15.5-g SiO2

Is Oxygen - O2 a pure substance or a mixture?

What atom has 14 protons and 14 electrons

What is a diagram showing the forces acting on a coasting bike rider traveling at 25 km/h on a flat roadway