Be sure to answer all parts. A sample of air contains 78.08% nitrogen, 20.94% oxygen, 0.0500% carbon dioxide, and 0.930% argon by volume. How many molecules of each gas are present in 6.70 L of the sample at 32°C and 7.55 atm? Enter your answers in scientific notation. × 10 molecules N2 × 10 molecules O2 × 10 molecules CO2 × 10 molecules Ar

According to the tide table below what time of day will the highest tide occur? (2 pt) the highest tide will occur at

Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy

What is the common name for the compound shown here? enter the common name of the compound shown?