Question

1. choose the best answer. which two of these are properties of water? water has poor thermal conductivity. water is nonpolar. water freezes at 100 °c. water is clear.

Explanation:

• Water has poor thermal conductivity. This means it does not transfer heat well.
• Water is a polar molecule (due to its bent shape and the difference in electronegativity between oxygen and hydrogen), so the statement "Water is non - polar" is incorrect.
• Water freezes at \(0^{\circ}C\) and boils at \(100^{\circ}C\), so the statement "Water freezes at \(100^{\circ}C\)" is incorrect.
• Water is clear, which is one of its physical properties.

Answer:

Water has poor thermal conductivity; Water is clear.