Chemistry: Water and Life Chapter 3 Quiz

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What is the molecular formula of water?

H2O

Which model represents the structure of water with higher electronegativity of the oxygen atom?

Space-filling model

How many hydrogen bonds are around each oxygen atom in water?

Two

What property of water contributes to Earth's suitability for life?

<p>Ability to support hydrogen bonds</p> Signup and view all the answers

What is the measure of how hard it is to break the surface of a liquid?

<p>Surface tension</p> Signup and view all the answers

What is the specific heat of water?

<p>1 cal/g/ºC</p> Signup and view all the answers

What process causes the cooling effect when a liquid evaporates?

<p>Evaporative cooling</p> Signup and view all the answers

Why does ice float in liquid water?

<p>Hydrogen bonds in ice are more ordered</p> Signup and view all the answers

What makes water a versatile solvent?

<p>Its polarity and ability to form hydrogen bonds easily</p> Signup and view all the answers

What is the measure of the total amount of kinetic energy due to molecular motion?

<p>Temperature</p> Signup and view all the answers

What is the attraction between water and other substances called?

<p>Adhesion</p> Signup and view all the answers

What is a liquid that is a homogeneous mixture of substances called?

<p>Aqueous solution</p> Signup and view all the answers

What is the heat a liquid must absorb for 1 g to be converted to gas called?

<p>'Heat of vaporization'</p> Signup and view all the answers

What helps transport water against gravity in plants?

<p>'Cohesion'</p> Signup and view all the answers

'Insulation of Bodies of Water by Floating Ice' is an example of:

<p>'Floating of Ice on liquid water'</p> Signup and view all the answers

What is the measure of the amount of heat that must be absorbed or lost for 1 g of a substance to change its temperature by 1ºC?

<p>Specific heat</p> Signup and view all the answers

What property of water allows it to resist changing its temperature?

<p>Moderation of temperature</p> Signup and view all the answers

What effect does warmer temperatures in the Arctic have on sea ice?

<p>It causes the sea ice to melt more in the summer</p> Signup and view all the answers

What is the main reason for ice floating in liquid water?

<p>More ordered hydrogen bonds in ice</p> Signup and view all the answers

Which of the following contributes to the versatility of water as a solvent?

<p>Polarity allowing easy formation of hydrogen bonds</p> Signup and view all the answers

What is the process by which water can stick to other molecules and make a hydrogen bond called?

<p>Adhesion</p> Signup and view all the answers

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