Q: Q: Which type of isomers generally have lower boiling and melting points than straight-chain isomers? Choices: - straight-chain isomers - branched-looping isomers - branched - solar isomers - branched-chain isomers A:
A: branched-chain isomers

Q: Q: The tyndall effect refers to the scattering of what by colloidal particles? Choices: - primary colors - dark matter - dust mites - visible light A:
A: visible light

Q: Q: What is the major cause of outdoor air pollution? Choices: - electric lines - agricultural equipment - manufacturing industry - burning fossil fuels A:
A: burning fossil fuels

Q: Q: Sodium and chlorine combine to make what? Choices: - gold - seawater - iron - salt A:
A: salt