Answer:
1st column group 1 - group2
second column Halogen group - zero group ( inert gases )
third column - very active metals , tend to lose one electron -less reactive than group one , tend to lose 2 electrons - very active nonmetals, tend to gain one electron - Nobel gases , do not gain or lose electrons
Explanation:
Answer:
Noble gas is Ne
Explanation:
Let's make the expression for the Ideal Gases Law at STP
Temperature = 273K
Pressure = 1 atm
1 atm . 1.409L = n . 0.0821 L∙atm/mol∙K . 273K
1.409 L.atm / (0.0821 L∙atm/mol∙K . 273K) = n
0.0628 mol = n
Let's calculate the molar mass to find out the noble gas
1.269 g / 0.0628 m = 20.2 g/m
BE CAREFUL BECAUSE THIS ARE WRONG IN THE STATEMENT.
12.69 g
14.09 L
Answer:
It would be known as a chemical reaction or a chemical compound.
The freezing point of a liquid is changed due to the addition of some foreign material which dissolves in the solvent. Like salt in water, ethanol in water etc. The freezing point of a solvent is the temperature at which the vapor pressure of the liquid solvent become equal to the vapor pressure of the solid solvent. Now due to addition of some foreign material like salt, ethanol etc. the vapor pressure of the liquid state of the solvent changes at a particular temperature. However the vapor pressure of the liquid in solid phase remain same. Thus there will be change of freezing point due to addition of some other material in a particular liquid.