Gases [9A. R, 9B. S]:Question 10
What volume does 3.0 mol of a gas occupy at 2 atm and 10 °C

The volume is 35L

Explanation:

We use the formula PV=nRT.We convert the temperature in Celsius into Kelvin: 0°C=273K---> 10°C=273+10= 283K

PV=nRT  ---> V=(nRT)/P

V=(3 mol x 0,082 l atm/K mol x 283K) / 2 atm

V=34, 809 L

a polar bond is formed when electrons are shared unevenly between atoms

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.