Drawing (forming) blocks of copper into copper wire is an example of a physical change. true or false

How temperature can affect the speed of reaction.

The dehydration of an alcohol in the presence of a strong acid yields

What kind of bond holds together atoms within a molecule?

What subatomic particle is directly related to the atomic number?

A magnet is A) any material that repels metals. B) any material that attracts iron C) and material that attracts helium

Teflon is prepared by the polymerization of tetrafluoroethylene. Write the equation that describes the polymerization using Lewis symbols.

Why is there no set path that a scientific inquiry must follow

Which of the following is a chemical property of vinegar? A. The pH of vinegar is around 2.4. B. Vinegar freezes at around 2°C. C. Vinegar boils at about 100°C. D. The color of vinegar ranges from colorless to brown. E.

Which best describes the mass of protons, neutrons and electrons

The last column of the periodic table contains the noble gases, elements that do not easily form chemical bonds.