What name is given to the process a solid becomes a liquid? a liquid becomes a gas; I have had a think about it is it melting when a solid becomes a liquid a liquid becomes a solid?

What are the factors that affect the dissolving of a solid in a liquid?

1. Fluorine-21 has a half-life of approximately 5 seconds. How much of a 200 gram sample would remain after 1 minute.

How does critical mass play a role in nuclear reactions?

What are polymers? Long chains of carbon molecules Small groups of halogen molecules Long chains of halogen molecules Small groups of carbon molecules

Which of the following is a good analogy for quantization using gravitational energy? A. A ramp B. A set of stairs C. An apple falling from a tree D. A swinging pendulum

Which of the following characteristics is not a property of an acid? a. has a sour taste b. accepts an H + ion c. may cause damage to buildings, statues, and rivers d. increases the concentration of hydronium ions in an aqueous solution

Which of these conclusions can be drawn from Rutherford's experiment? A: Each atom contains electrons. B: The nucleus of an atom can be split. C: Each atom contains protons. D: Atoms are mostly empty space.

Describe one major laboratory accident mentioned in the training presentation, what chemicals were involved, the type of PPE that was worn at the time of the accident, and how it could have been prevented.

Which process creates food for plants in order to maintain homeostasis? Breathing Cell division Cellular respiration Photosynthesis

Describe a proton, neutron, and electron. Where are these particles located inside an atom.