Answer:
high melting and boiling points
Explanation:
Answer : The partial pressure of 
is 102.3 mmHg.
Explanation :
As per question,
Mass of = 62.9 g
Mass of 
= 33.2 g
Molar mass of = 18 g/mole
Molar mass of = 62 g/mole
First we have to calculate the moles of and .
Now we have to calculate the mole fraction of and .
Now we have to partial pressure of .
According to the Raoult's law,
where,
= partial pressure of water vapor
= total pressure of gas
= mole fraction of water vapor
Therefore, the partial pressure of is 102.3 mmHg.
Answer:
Hydrogen: +1 -1
Beryllium: +2 -1
Boron: -1 +2
Carbon: +6 -1
Nitrogen: 0
Oxygen: 0 -2
Fluorine: -1 +1
Neon: 10 0
Explanation: Most atoms do not have eight electrons in their valence electron shell. Some atoms have only a few electrons in their outer shell, while some atoms lack only one or two electrons to have an octet. In cases where an atom has three or fewer valence electrons, the atom may lose those valence electrons quite easily until what remains is a lower shell that contains an octet. Atoms that lose electrons acquire a positive charge as a result because they are left with fewer negatively charged electrons to balance the positive charges of the protons in the nucleus. Positively charged ions are called cations. Most metals become cations when they make ionic compounds.
3. 3 because 1 2 3 4 5 6 7 makes sence right?
