53. Which of the following polymer is suitable for packaging

electrical insulator? A. polystyrene B. polyethylene C.

polyamide D. polycarbonate

Substances which will glow in the dark after being exposed to sunlight are called:

Which statement is true? Rocks do not contain any mineral matter. Most rocks are composed of a single mineral. Most rocks are made up of a mixture of minerals.

Which of the following is required to change the state of matter?

Why is silver nitrate used in qualitative analysis of an sn1 reaction? select all that apply?

Why do sugar crystals dissolve faster in hot water than in cold water?

Explain why the radius of an atom cannot be measured directly. (6.3)

Which measurement represents the largest volume? question 7 options: 4.6 l 4.6 * 10-3 l 46 cl 460 ml all represent the same volume?

Which statement explains how the bands in the crystal of a metal are like atomic orbitals? They both have localized electrons that orbit specific atoms. They both involve ionization of some atoms so bonding can occur.

In a system for separating gases a tank containing a mixture of hydrogen and carbon dioxide is connected to a much larger tank where the pressure is kept very low.

What formation is favored by the addition of heat.