<u>Answer:</u> The final temperature of the coffee is 43.9°C
<u>Explanation:</u>
To calculate the final temperature, we use the equation:

where,
q = heat released = 
m = mass of water = 10.0 grams
C = specific heat capacity of water = 4.184 J/g°C
= final temperature = ?
= initial temperature = 20°C
Putting values in above equation, we get:

Hence, the final temperature of the coffee is 43.9°C
Answer: The answer is Fossil A is younger than the index fossil.
Explanation: Because it’s the newest layer
Sorry for the late response but for this question, the answer is 3 moles of water.
Answer:
The second one is the answer
Copper chloride ...............