In a periodic table, dots around an elements symbol indicate the number of valence electrons in an atom? True Or False

he compound known as butylated hydroxytoluene, abbreviated as BHT, contains carbon, hydrogen, and oxygen. A 3.376 g sample of BHT was combusted in an oxygen rich environment to produce 10.11 g of CO2 (g) and 3.312 g of H2O (g).

What kind of gas is the best chance for inflating a balloon that must remain inflated for a long period of time?

An apprentice jeweler determines the density of a sample of pure gold to be 20.3 g/cm3. the accepted value is 19.3 g/cm3. what is the percent error of the jeweler's density measurement?

How will the volume of a gas be affected if the pressure is tripled, but the temperature remains the same?

Steam at 200 °C is cooled to 105°c. What happens to the volume? Mass? Average kinetic energyy of the molecules and the particle movement?

What is the term used to describe the material moved by erosion?

How are the sizes of stars measured? I just need a simple answer

Calculate the mass of Octane needed to release 6.20 mol Co2

The process by which nitrogen gas is converted to a useable form is called

What are two factors that can affect salinity?