Answer:
actually word equation has the names and we need to write molecular formula in chemical eqn. so I don't think there is sort of trick.You just need to memorise the molecular formula of chemicals.
If this is the transfer of heat by direst contact its radiation, but if the material for example, fire, that heated a large air mass, for example, a house, the fire would heat up the air being convection, but if the martial for example, fire, heats your had when your hand is close to the fire, its radiation.
Answer:
Explanation:
= Initial mass of water = 100 g
c = Specific heat of water
= Temperature difference of the initial mass of water = 
= Amount of water that is mixed = 75 g
= Temperature difference of the mixed mass of water = 
= Equilibrium temperature
The heat balance of the system is
The final temperature of the mixed water is .
The answer is Carbon dioxide
