A sample of N2 gas occupying 800 mL at 20.0°C is chilled on ice to 0.00°C. If the pressure also drops from 1.50 atm to 1.20 atm, what is the final volume of the gas? Which equation should you use?

How does density change by changing the mass without changing the volume and by changing the volume of a substance without changing the mass?

Are Si valence electrons shared? Are C valence electrons shared?

New nuclei and neutrons result from: a. nuclear fusion b. the release of electrons from a positively charged atom c. the splitting of an atom s nucleus d. the splitting of an atom s neutron

Which of the following materials is a metalloid or semi-metal (has some metallic properties and some properties similar to non-metals) ? Group of answer choices Na silicon (Si) NaCl selenium (Se)

What is likely the homeostatic reason for developing a fever

Enter a chemical equation for LiOH (aq) LiOH (aq) showing how it is an acid or a base according to the Arrhenius definition. Consider that strong acids and bases dissociate completely. Express your answer as a chemical equation.

Percent copper in brass lab

Which statement best describes Rutherford's model of the atom?

If a net force of 5.0 forward acts on a 0.60 kg toy car, what is it's acceleration?

Which physical method can be used for obtaining a sample of salt from a small beaker of salt water? boiling freezing chromatography sorting