Velocity = displacement/time = 15/30 = 0.5miles/hr.
Answer:
Calcium would displace barium.
Explanation:
Ba(NO₃)₂ + Ca --> Ca(NO₃)₂ + Ba
There are two types of compounds: molecular/covalent and ionic.
Molecular/covalent compounds are non-metal + non-metal.
Ionic compounds are metal + non-metal.
Looking at the periodic table, barium is a metal. Calcium is also a metal.
Checking a polyatomic ions chart would tell you NO₃⁻ is a non-metal because it has a negative charge.
Since there is no metal + metal compound, the calcium metal would displace barium. The compound remains ionic.
Answer: 736.2 torr
Explanation: According to Dalton's law, the total pressure of a mixture of gases is the sum of individual pressures exerted by the constituent gases.
Thus
Given:
Thus
Thus pressure exerted by the hydrogen gas alone is 736.2 torr.
Answer:
Explanation:
the atomic number of lithium is 3 thats why the electronic configuration of lithium is 1s2,2s1
Keep trying you will get if you keep trying ok