Water’s Properties
pH and Buffers
Water as a Solvent
Temperature & Ice
Hydrogen Bonding & Cohesion
100

What is the property that allows water molecules to stick to each other?

What is cohesion

100

What pH value represents a neutral solution?

What is 7?

100

What is a substance that dissolves in water called?

What is hydrophilic?

100

Why does ice float on water?

What is because ice is less dense than liquid water?)

100

What type of bond holds water molecules together?

What is hydrogen bonding?)

200

This property allows water to travel up plant stems against gravity.

(What is adhesion?)

200

What happens to the hydrogen ion (H+) concentration as pH decreases?

What is it increases?

200

Water can dissolve polar molecules due to its _________.

What is polarity?

200

Water has a high specific heat due to what kind of bonds?

What are hydrogen bonds?

200

What is the attraction between different substances, like water and plant walls, called?

What is adhesion?)

300

What is the reason water has a high surface tension?

What are hydrogen bonds?)

300

A solution has an H+ concentration of 10⁻⁴. What is its pH?

What is 4?

300

What happens when an ionic compound dissolves in water?

What is the formation of hydration shells?)

300

What property allows sweating to cool the body?

What is evaporative cooling?

300

How does cohesion help plants?

What is allowing water to be pulled upward through xylem?

400

Water’s ability to moderate temperature is due to its high _________.

What is specific heat?

400

What is the role of buffers in biological systems?

What is maintaining pH homeostasis?)

400

Why don’t oil molecules mix with water?

What is because they are nonpolar/hydrophobic?)

400

At what temperature does water reach its maximum density?

What is 4°C

400

What property allows small insects to walk on water?

What is surface tension?

500

What are the four emergent properties of water?

What are cohesion, ability to moderate temperature, expansion upon freezing, and versatility as a solvent?)

500

What is the effect of ocean acidification on marine life

What is a decrease in carbonate ions, affecting shell-building organisms?

500

What is the term for a solution where water is the solvent?

What is an aqueous solution?

500

What effect does climate change have on frozen environments?

What is melting glaciers and ice caps, affecting ecosystems?

500

Why does water resist rapid temperature changes?

What is its high specific heat?)

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