Q: What molecule consists of two atoms of hydrogen and one atom of oxygen? Choices: - carbon monoxide - hydrogen peroxide - air - water A:
water

Q: Which mineral do native americans use to decorate items? Choices: - Tanzanite - Topaz - Amethyst - turquoise A:
turquoise

Q: Q: These microorganisms are abundant in the human digestive track and serve many roles. what are they? Choices: - antioxidants - pathogens - tumors - bacteria A:
A: bacteria

Question: Q: What do molecules need to do for a reaction to take place? Choices: - explode - melt - separate - collide A:
Answer: collide

*Question*
Q: What do a group of cells that work together form? Choices: - molecule - organelle - organ - tissue A:
**Answer**
tissue

Q: Q: Which model helps explain molecules with double or triple bonds? Choices: - salinity model - reactivity model - particle model - hybridization model A:
A: hybridization model