What is the mass of 0.31 1 mol of the element

potassium (K) ?

Answer in units of g

The volume of a gas is increased from 445mL to 515ml. If the initial pressure was 120kPa, what is the final pressure of the gas?

Chlorine has 2 stable isotopes with masses of 35.0 amu (75.53%) and 37.0 amu (24.47%). Calculate the average atomic mass of Chlorine

Which of the following is a displacement? A 5 meters per second B 10 feet C 0.7 grams per centimeter cubed D 3 blocks east

Using bridge notation convert 463kg to mg

To what category of elements does an element belong if it is a poor conductor of electricity? a. transition elements c. nonmetals b. metalloids

Which option is true about the effect of polarity on solubility? Select all that apply. Polar solutes dissolve better in water than in oil. Polar solutes have the greatest solubility in nonpolar solvents.

Which change results in a release of energy? 1. The melting of H₂O (S) 2. The boiling of water (L) 3. The evaporation of H₂0 (L) 4. The condensation of H₂0 (G)

What changes nitrogen gas in the air to nitrogen compounds that fall to the ground

Which element has an isotope mass number of 32 and is used as an ecological tracer?

Which laws can be combined to form the ideal gas law? Boyle's law and Charles's law Gay-Lussac's law and Avogadro's law Charles's law, Avogadro's law, and Boyle's law Dalton's law, Gay-Lussac's law, and Avogadro's law