What does it mean when there is a physical change? Question 1 options:

A new substance has been formed.

Matter has changed size, shape or form.

Matter has changed from one substance into another.

Matter has changed on the molecular level.

Solar energy is energy from the sun that is converted into thermal or energy. a. nuclear b. mechanical c. electrical d. chemical

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver

Acandle’s wick is the fabric string that holds the flame, and it burns down at a constant slow pace when the candle is lit. the wick is usually surrounded by wax. which is the most important property of covalent compounds that makes them useful for making candle wax? a low boiling point a low melting point a high boiling point a high melting point