Caffeine - Lead (Pb) - Copper (II) chloride (CuCl2) - Sodium chloride (NaCl) - Silver (Ag) - Tungsten
Answer:
0.45 moles of air are in a 3.0 L balloon
Explanation:
The given problem can be solved by using unitary method.
Firstly, we have to find out how many breaths are equivalent to 3.0 L. Secondly, we have to find out how many moles of air are supplied corresponding to the calculated number of breaths.
1.2 L = 3 breaths
So, 3.0 L = 
breaths = 7.5 breaths
1 breath supplies 0.060 moles of air
So, 7.5 breaths supplies 
moles of air or 0.45 moles of air.
Hence, 0.45 moles of air are in a 3.0 L balloon.
The melting point (or, rarely, liquefaction point) of a solid is the temperature at which it changes state from solid to liquid at atmospheric pressure. At the melting point the solid and liquid phase exist in equilibrium. The melting point of a substance depends on pressure and is usually specified at standard pressure.
Answer:
we have lots of bikes and i think that we could improve them to be portable scooters. we also have buses and i think that we should change them to subways to prevent all the pollution. Also i think cars should be less polluted in the future
Explanation: hope this is an okay answer.
Answer:
The total mass of the reactants in a chemical reaction is conserved and will be equal to the total original mass of the products
Explanation:
