How many joules of heat are absorbed to raise the temperature of 650 grams of water from 5.00c to it's boiling point, 100c

Answer : The amount of heat absorbed are, 258485.5 J

Solution :

Formula used :

where,

Q = heat gained  = ?

m = mass of water = 650 g

c = specific heat of water =      

= final temperature =

= initial temperature =

Now put all the given values in the above formula, we get the final temperature of copper.

Therefore, the amount of heat absorbed are, 258485.5 J

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.