Question

1. choose the best answer. who theorized that cathode rays were smaller than atoms? thomson rutherford crookes dalton 18. choose the best answer. which statement is true about water? water is clear and polar and has good thermal conductivity. water is clear and polar and has poor thermal conductivity. water is clear and nonpolar and has good thermal conductivity. water is muddy and nonpolar and has poor thermal conductivity.

Explanation:

1. Thomson theorized that cathode - rays were composed of particles smaller than atoms, which he later called electrons.
2. Water is a clear liquid. It is a polar molecule due to the unequal sharing of electrons between hydrogen and oxygen atoms. And water has poor thermal conductivity compared to metals.

Answer:

1. Thomson
2. Water is clear and polar and has poor thermal conductivity.