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Yawaka22go
Answered

1. When water with 100°C boiling point, and ethyl alcohol with 78°C boiling point and heated
up, which of the two evaporates first? Why?
2. IF I throw an oakwood that has a 0.65 g/cm3 in seawater with 1.03 g/cm3 will it float or
sink? Why?
3. Iron meits slowly because it has 1.535 °C melting point, while the ice melts at 0°C. Why do
you think the substance ice has absolutely 0°C melting point?
4. The melting peak of margarine is at 40°C, whereas butter starts to melt at 35°C. Which of
the two will melt first? Why?
5. When a plastic ball with a density of 0.95 g/cm3 and a tennis ball with 0.084 g/cm3 fallis on
pool water that has a 0.99 g/cm3 density. Which of the two will float? Why?
Answer:​

Sagot :

Eyngell35go

Answer:

1. the ethyl alcohol will evaporate first because it have low boiling point.

2. I think it will float because it's not heavy

3.

4. butter will melt first because it have lower melting point that margarine

5. the plastic ball will float because it's a plastic and it's not heavy than tennis ball

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