I can't answer the question without the statements but I can tell you Calorimetry means measuring amounts of heat released or received during a chemical reaction.
Answer:
here are the answers babe. Feel free to ask for more
Answer:
<h2>0.14 kg</h2>
Explanation:
The mass of the ball can be found by using the formula

v is the velocity
k is the kinetic energy
From the question we have

We have the final answer as
<h3>0.14 kg</h3>
Hope this helps you
Answer:
The equation shows balance.
Explanation:
You can easily count the number of elements on each side.
On the left side of the equation, you have 2 moles of Na and 2 moles of Cl.
On the right side of the equation, you also have 2 moles of Na and 2 moles of Cl because the two elements formed a compound meaning that whatever number is in front of them, both elements will receive the same number.
Answer:
t = 50 s
Explanation:
P = W/t
Solving for t,
t = W/P = (3430000 J)/(68600 Watts)
= 50 s
Note: 1 Watt = 1 J/s