You are walking on the beach and find a small metal spoon sticking out of the sand. It looks old! Could it be real silver? You take it home to weigh it: 157 grams. You put the spoon in boiling water and heat it
up to 100°C. Then you put 100 mL (100 g) of water into your trusty styrofoam calorimeter.
Immediately, the water in the calorimeter rises from 15°C to 22°C, where it reaches equilibrium with
the metal.
1) What is the specific heat capacity of the metal spoon?
2) Is the spoon silver? How do you know? (Hint: the specific heat capacity of silver is 0.24 J/g°C)
PLEASE TYPE YOUR WORK HERE TO SHOW HOW YOU CALCULATED THIS PROBLEM!

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied