What properties are attributed to a solid with the type of bonding represented in the picture?
a)
low melting point

b)
good conductor of electricity and heat

c)
high volatility

d)
brittle
when describing metallic bonding, scientists note that the metal ions seem to be floating in a sea of electrons. this arrangement contributes to the physical property of in metals.

a)
luster

b)
ductility

c)
malleability

d)
conductivity
carbon and fluorine combine covalently to form a binary compound. what is the formula of the compound with the name carbon tetrafluoride?

a)
c4f

b)
c4f4

c)
cf

d)
cf4

1:both B&D are properties of solid

2:conductivity as other factors like lustre needs continuous supply of photons of light

3:D due to it's covalency

not clear

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :