Question

Question
1
Question
2
Question
3
A)
Which option is an example of an open system?
(1 point)
an erupting volcano
a chemical glowstick
a fertilized chicken egg
a pressure cooker
A)
Which statement accurately describes a reaction with very high heat energy?
(1 point)
few molecular collisions occurring quickly
few molecular collisions occurring slowly
many molecular collisions occurring slowly
many molecular collisions occurring quickly
A)
A reaction is occurring in a test tube. How is heat transmitted to the surroundings?
(1 point)
All of the heat escapes out of the open top of the test tube as molecules collide with the air.
As bubbles are formed and gas escapes, the heat is carried with the rising bubbles.
Molecules collide with the glass, and the glass molecules then transmit that energy to the outside.
Heat is carried out with matter as matter is changed with the surroundings.
Question
4
Question
5
A)
Which statement is true for an open system?
(1 point)
Heat and matter cannot transfer between the system and the surroundings.
Heat and matter can both transfer between the system and the surroundings.
Matter but not heat can transfer between the system and the surroundings.
Heat but not matter can transfer between the system and the surroundings.
A)
A chemist mixes chemicals in a beaker, on a lab bench in a lab in order to observe the reaction.What is considered the surroundings in this scenario?
(1 point)
the entire lab environment including the air, lab bench and lab
all of the chemicals being combined and created in the reaction
only the lab bench that is being used for the reaction
only the air around the chemical reaction in the lab

Answer 1

1) an erupting volcano

2) many molecular collisions occurring quickly

3) Molecules collide with the glass, and the glass molecules then transmit that energy to the outside.

4) Heat and matter can both transfer between the system and the surroundings.

5) the entire lab environment including the air, lab bench and lab