Explanation :
In thermodynamics, a system is region or part of space which is being studied and observed while the surrounding is the region or space around the system which interacts with the system.
Here in the experiment ,system which is observed is reaction or changes when citric acid and sodium bicarbonate are mixed together. And the mixing is carried out in the calorimeter which serves as a surrounding around the system.
The reason behind the using the calorimeter is measure the energy change occurring during the reaction.
The answer is most likely nonmetals. :)
Answer:
hello, There!
<h2>
Your Question↓</h2><h3>
Which of the following are observations?</h3><h2>
Answer↓</h2>
❄ the candle floats, the tires are flat, and the dog is barking are observations.❄
Explanation:
↠ the three given statements are examples of observations, while the last two statements imply the concept of cause-effect relationships. ⬽
Have a great day! ⬽
Therefore, I hope this helps!
Answer:
Metals have high densities, high melting points, are malleable and ductile, and can conduct heat and electricity.
Hope this helps as well! :)
