Question detail
A substance has a melting point of 50°C and a boiling point of 150°C. Predict the state of the substance at 25°C.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
How bonding and structure are related to the properties of substances
Question
A substance has a melting point of 50°C and a boiling point of 150°C. Predict the state of the substance at 25°C.
Answer
At 25°C, the substance is a solid because the temperature is below its melting point of 50°C.
Explanation
This question tests the ability to apply knowledge of melting and boiling points to predict the state of a substance at a given temperature. The answer is strong as it correctly identifies the state based on the provided data.
Common mistake
The three states of matter correction for Predicting State of Matter.
Students often confuse melting point and boiling point, predicting the wrong state at a given temperature This error matters in The three states of matter because it drifts away from the objective: Predict the state of a substance at a given temperature using melting point and boiling point data.
Correct it by naming the exact chemistry idea, using precise bonding or structure vocabulary, and linking the answer back to The three states of matter. For this objective, students should predict the state of a substance at a given temperature using melting point and boiling point data.
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