Could someone help me for the first slide pls? thanks

Hey there mate ;)

Given PPT image question is attached.

For answers :-

☆ The spectators in the stand are like particles in a solid because the spectators are sitting very close to each other with no spaces in between them, which is like a property in solids.

☆ The players in the pitch are like particles in a gas because there is a large amount if space in between the players, which is like a property of gases.

☆ The spectators standing in the terraces are like particles in a liquid because there is little space in between the spectators, which is like a property of liquid.

  the grams     of oxygen gas   that can be produced     is 20.6   grams of o₂

calculation

2liclo₃ →   2 licl + 3 o₂

step 1:   find the moles of liclo₃

moles = mass÷ molar mass

from periodic table the molar mass of liclo₃ =6.9 +35.5   +(16 x3) =90.4 g/mol

moles=38.7 g÷90.4 g/mol=0.4281   moles

step 2:   use the   mole ratio   to calculate the moles of o2

from equation above, liclo₃: o₂   is 2: 3  

therefore the moles of   o₂=0.4281 moles x3/2 =0.6422   moles

step 3: find mass   of o₂

mass= moles x molar mass

from periodic table the   molar mass of   o₂ = 16 x2= 32 g/mol

mass=0.6422   moles   x   32 g/mol = 20.6 grams of o₂

answersysvol bloat;