rocklee123
New member
1) Calculate the mass ratio of the following properties for 1.0 kg of air versus 1.0kg of iron at 25 degrees C.
A. Mass b. volume c. density
2) A solid white substance A is heated strongly in the absence of air. It decomposes to form a new
white solid substance B and a gas C. The gas has exactly the same properties as the product
obtained when carbon is burned with excess oxygen. What can you say about whether solids A
and B and the gas C are elements or compounds?
3) Suppose you define your own temperature scale (G) using the freezing point (-115 oC) and the
boiling point (197.6 degrees C) of ethylene glycol (the main ingredient in automotive antifreeze). You set
the freezing point of ethylene glycol as O degrees G and the boiling point as 100oG. On the G
temperature scale, what is the temperature for the freezing point of water?
A. Mass b. volume c. density
2) A solid white substance A is heated strongly in the absence of air. It decomposes to form a new
white solid substance B and a gas C. The gas has exactly the same properties as the product
obtained when carbon is burned with excess oxygen. What can you say about whether solids A
and B and the gas C are elements or compounds?
3) Suppose you define your own temperature scale (G) using the freezing point (-115 oC) and the
boiling point (197.6 degrees C) of ethylene glycol (the main ingredient in automotive antifreeze). You set
the freezing point of ethylene glycol as O degrees G and the boiling point as 100oG. On the G
temperature scale, what is the temperature for the freezing point of water?