The formation of a plaque and halitosis can be avoided by brushing and flossing at least :

Rob and his sister Joan are standing on their apartment balcony. Rob throws a ball straight out from the balcony. At the same time, Joan drops a ball straight down. Both balls reach the ground at the same time.

Are ionic compounds or covalent compounds usually soluble in water

How is heat transferred through radiation? A. Heat is transferred by energy waves moving through space. B. Heat is transferred by the movement of a liquid or gas. C. Heat is transferred by one molecule touching another. D.

Why is oxygen written with a subscript 2 in CO2? . A. Its mass is twice as great as the reactants'. B. Each molecule of carbon dioxide has two oxygen atoms. C. Its mass increases by two times as a result of the reaction. D.

A jar is tightly sealed at 22°C and 772 torr what is the pressure inside a jar after its been heated to 178°C

Describe how the periodic table differentiates between metals and nonmetals. I need a very informative description/explanation on this.

When the ideal gas law is arranged as shown below, what property of the gas is being solved for (represented by the X) ? x equals PV over nR

Which element could chlorine bond with to form an ionic compound? helium oxygen fluorine sodium

A scientist conducted one trial experiment and got unexpected results. how can the scientist increase confidence in the results

A board measures 212 inches. How many feet is this?