Q: What do you call compounds whose properties are different because their atoms are bonded together in different arrangements? Choices: - isotopes - mixtures - ionic compounds - isomers A:
isomers

Q: What are carbonated beverages pressurized with? Choices: - helium - dioxide - hydrogen - co2 A:
co2

Q: Q: What are the proteins called that speed up biochemical reactions in cells? Choices: - peptides - hormones - carbohydrates - enzymes A:
A: enzymes

Question: Q: What begins when a neuron receives a chemical stimulus? Choices: - a induce impulse - a metabolism impulse - nerve reaction - a nerve impulse A:
Answer: a nerve impulse

*Question*
Q: What is the smallest class of elements? Choices: - halogens - noble gases - synthetics - metalloids A:
**Answer**
metalloids

Q: Through a process called electromagnetic induction, generators change what energy form of a spinning turbine to electrical energy? Choices: - potential - seismic - electric - kinetic A:
kinetic