A student arranges two blocks of copper next to each other so that they are touching. At the start of the experiment, Block 1’s temperature is 40°C, and Block 2’s temperature is 20°C. The two blocks remain in an isolated system until all heat energy is transferred. Which picture correctly shows the blocks’ ending temperatures?(1 point)

Question

Responses

Answer 1

Unfortunately, without the pictures provided, I am unable to determine which picture correctly shows the blocks' ending temperatures.

Answer 2

30c 30c
50c 20c
20c 50c
70c 70c

Answer 3

The correct picture would be:
70°C 70°C

Answer 4

Question
When you add cold milk and hot chocolate, they will slowly blend as the cooler liquid mixes with the warmer liquid. Eventually, the heat will be spread out evenly through the entire liquid. Which statement best explains why this happens?(1 point)
Responses

Heat always moves from areas of higher temperature to areas of lower temperature.
Heat always moves from areas of higher temperature to areas of lower temperature.

Cold liquids rise and hot liquids sink making the liquids mix.
Cold liquids rise and hot liquids sink making the liquids mix.

The molecules of the two liquids form chemical bonds to spread energy.
The molecules of the two liquids form chemical bonds to spread energy.

The liquids attract each other because the densities of the liquids are the same.
The liquids attract each other because the densities of the liquids are the same.
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