B. An early form of chemistry that people used to try to turn metal.
<u>Answer:</u> The final temperature will be 
<u>Explanation:</u>
Calculating the heat released or absorbed for the process:
In a system, the total amount of heat released is equal to the total amount of heat absorbed.
OR
......(1)
where,
C = heat capacity of water = 
= mass of water of sample 1 = 100.0 g
= mass of water of sample 2 = 71.0 g
= final temperature of the system = ?
= initial temperature of water of sample 1 = 
= initial temperature of the water of sample 2 = 
Putting values in equation 1, we get:
Hence, the final temperature will be
The anserr is c that what i think
Answer is: the height of cylinder is 58.33 ml.
d(rock) = 15 g/cm³.
m(rock) = 50 g.
V(rock) = m(rock) ÷ d(rock).
V(rock) = 50 g ÷ 15 g/cm³.
V(rock) = 3.33 cm³ = 3.33 ml..
h(<span>cylinder) = V(rock) + V(water).
</span>h(cylinder) = 3.33 cm³ + 55 cm³.
h(cylinder) = 58.33 cm³.
Answer:
P(total) = 15 atm
Explanation:
Given data:
Pressure of O₂ = 5.75 atm
Pressure of N₂ = 7 atm
Pressure of He = 2.25 atm
Total pressure inside tank = ?
Solution:
According to Dalton law of partial pressure,
The total pressure inside container is equal to the sum of partial pressures of individual gases present in container.
Mathematical expression:
P(total) = P₁ + P₂ + P₃+ ............+Pₙ
Now we will solve this problem by using this law.
P(total) = P(O₂) + P(N₂) + P(He)
P(total) = 5.75 atm + 7 atm + 2.25 atm
P(total) = 15 atm
