Q: In chemical reactions, what substances can act like metals or nonmetals, depending on their number of electrons? Choices: - diacritics - minerals - synthetics - metalloids A:
metalloids

Q: The majority of salamanders lack what organs, so respiration occurs through the skin or through external gills? Choices: - throats - mouths - noses - lungs A:
lungs

Q: Q: Orbiting at a fairly typical 370 kilometers, the international space station is an example of what? Choices: - alteration satellite - flagella satellite - high orbit satellite - manmade satellite A:
A: manmade satellite

Question: Q: The afferent arterioles service about 1.3 million of what in each kidney? Choices: - dendrites - axons - neurons - nephrons A:
Answer: nephrons

*Question*
Q: Elemental carbon is a black, dull-looking solid that conducts heat and this? Choices: - light - energy - vibration - electricity A:
**Answer**
electricity

Q: When zinc reacts with hydrochloric acid, the reaction bubbles vigorously as which type of gas is produced? Choices: - chlorine - oxygen - nitrogen - hydrogren A:
hydrogren