Gr 11 Physical Sciences: Ch 4.2 The chemistry of water

<p>By dissolving oxygen and carbon dioxide (C)</p> Signup and view all the answers

<p>Because of its ability to dissolve a wide range of substances (A)</p> Signup and view all the answers

<p>100°C (A)</p> Signup and view all the answers

<p>Due to the strong hydrogen bonds between water molecules (B)</p> Signup and view all the answers

<p>It decreases (C)</p> Signup and view all the answers

<p>Because ice is less dense than liquid water (B)</p> Signup and view all the answers

<p>Hydration (A)</p> Signup and view all the answers

<p>Because they have strong hydrogen bonds with water molecules (B)</p> Signup and view all the answers

<p>Heat of vaporisation (D)</p> Signup and view all the answers

<p>Because of the strong hydrogen bonds between water molecules (C)</p> Signup and view all the answers

<p>They separate into ions surrounded by water molecules (B)</p> Signup and view all the answers

<p>Because of the lack of attraction between water molecules and non-polar molecules (C)</p> Signup and view all the answers

<p>Angular (B)</p> Signup and view all the answers

<p>Hydrogen bonds (A)</p> Signup and view all the answers

<p>It regulates environmental temperatures (C)</p> Signup and view all the answers

<p>It acts as a heat reservoir (A)</p> Signup and view all the answers

<p>They hold water molecules together (A)</p> Signup and view all the answers

<p>Specific heat capacity (A)</p> Signup and view all the answers

<p>They moderate the Earth's climate (C)</p> Signup and view all the answers

<p>It maintains stable temperatures within organisms (B)</p> Signup and view all the answers

<p>The intermolecular forces that hold water molecules together (D)</p> Signup and view all the answers

<p>Because the hydrogen bonds must be disrupted before the molecules can move more rapidly (C)</p> Signup and view all the answers

<p>It facilitates the transport and biochemical reactions of nutrients, gases, and waste products. (B)</p> Signup and view all the answers

<p>It buffers the Earth's climate (D)</p> Signup and view all the answers

<p>Slow and gradual temperature changes (A)</p> Signup and view all the answers

<p>It enables the distribution of nutrients in soil and supports aquatic ecosystems. (C)</p> Signup and view all the answers

<p>Bent or angular (D)</p> Signup and view all the answers

<p>Because it can dissolve a wide range of substances. (D)</p> Signup and view all the answers

<p>Like dissolves like. (D)</p> Signup and view all the answers

<p>It maintains stable temperatures within organisms (B)</p> Signup and view all the answers

<p>It moderates temperature fluctuations (A)</p> Signup and view all the answers

<p>It is integral to many natural and human-made processes. (C)</p> Signup and view all the answers

<p>The oxygen atom is bonded to two hydrogen atoms, which also has two lone pairs of electrons (D)</p> Signup and view all the answers

<p>Strong hydrogen bonds between water molecules (C)</p> Signup and view all the answers

<p>A significant amount of heat is absorbed from the body, providing a cooling effect (C)</p> Signup and view all the answers

<p>Because ice is less dense than liquid water (C)</p> Signup and view all the answers

<p>Ionic and polar substances (A)</p> Signup and view all the answers

<p>It takes up more space than the arrangement of molecules in liquid water (D)</p> Signup and view all the answers

<p>Because of the lack of attraction between water molecules and non-polar molecules (A)</p> Signup and view all the answers

<p>They require more energy to break, leading to higher phase transition temperatures (B)</p> Signup and view all the answers

<p>Water has a higher heat of vaporization (A)</p> Signup and view all the answers

<p>Because of its polarity and ability to form hydrogen bonds (B)</p> Signup and view all the answers

<p>It makes water more essential for life on Earth (C)</p> Signup and view all the answers

<p>Water's ability to dissolve a wide range of substances enables the transport of nutrients and waste products (C)</p> Signup and view all the answers

<p>It enables the support of aquatic ecosystems (B)</p> Signup and view all the answers

<p>Its polarity enables it to dissolve a wide range of substances (A)</p> Signup and view all the answers

<p>It enables the transport of minerals from the soil to plants (B)</p> Signup and view all the answers

<p>Its ability to dissolve a wide range of substances enables the transport of nutrients and waste products (C)</p> Signup and view all the answers

<p>The presence of two lone pairs of electrons on the oxygen atom (B)</p> Signup and view all the answers

<p>It helps to moderate the Earth's climate by storing heat during the day and releasing it slowly at night (C)</p> Signup and view all the answers

<p>The strong hydrogen bonds between water molecules (C)</p> Signup and view all the answers

<p>The temperature of the surrounding environment remains relatively stable (B)</p> Signup and view all the answers

<p>It helps to regulate the Earth's climate by trapping and storing heat energy (A)</p> Signup and view all the answers

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

<p>The water molecules start to move more rapidly (C)</p> Signup and view all the answers

<p>It helps to maintain stable temperatures within organisms (C)</p> Signup and view all the answers

<p>Strong hydrogen bonds between water molecules. (B)</p> Signup and view all the answers

<p>A cooling effect is provided when sweat evaporates from the skin. (D)</p> Signup and view all the answers

<p>The open hexagonal structure of ice takes up more space than the more closely packed arrangement of molecules in liquid water. (A)</p> Signup and view all the answers

<p>The polarity of water molecules allows them to interact with and dissolve various substances. (C)</p> Signup and view all the answers

<p>They require more energy to break, leading to higher phase transition temperatures. (C)</p> Signup and view all the answers

<p>It allows for the existence of a wide range of aquatic ecosystems. (A)</p> Signup and view all the answers

<p>The lack of attraction between water molecules and non-polar molecules. (D)</p> Signup and view all the answers

<p>It helps to maintain a stable temperature, supporting various biological and ecological processes. (B)</p> Signup and view all the answers

<p>Water has a high heat of vaporisation. (A)</p> Signup and view all the answers

<p>It helps to regulate environmental temperatures, supporting various biological and ecological processes. (A)</p> Signup and view all the answers