SNC Practice Questions on Pure Substances

Elements (e.g., iron, nitrogen, helium) and Compounds (e.g., water).

Salt water is a mixture, gold is a pure substance, a pencil is a mixture.

False

<p>A compound is made of two or more elements that are chemically combined.</p> Signup and view all the answers

<p>Matter takes up space, has mass, and volume.</p> Signup and view all the answers

<p>Energy is light, heat, sound, and electricity.</p> Signup and view all the answers

<p>Matter has mass and volume; energy does not have mass and does not take up space.</p> Signup and view all the answers

<p>Solid, liquid, gas, plasma.</p> Signup and view all the answers

<p>Heating makes particles move faster, needing more space; cooling makes particles move slower, needing less space.</p> Signup and view all the answers

<p>All matter is made of particles, which have empty spaces between them, differ by substance, move faster as temperature increases, and attract each other.</p> Signup and view all the answers

<p>Matter has many different types with different properties, characterized by specific characteristics.</p> Signup and view all the answers

<p>Mixtures where you can see the different parts.</p> Signup and view all the answers

<p>Mixtures that are hard to detect because the individual parts are not visible.</p> Signup and view all the answers

<p>Something that can be observed or measured.</p> Signup and view all the answers

<p>Qualitative refers to physical properties observed with senses; quantitative refers to measurements giving numerical values.</p> Signup and view all the answers

<p>Color, lustre, conductivity, density, ductility, hardness, malleability, melting and boiling points, solubility, viscosity.</p> Signup and view all the answers

<p>Gold.</p> Signup and view all the answers

<p>Metal.</p> Signup and view all the answers

<p>Water (1g/mL).</p> Signup and view all the answers

<p>Copper.</p> Signup and view all the answers

<p>Diamond (10 on hardness scale).</p> Signup and view all the answers

<p>Aluminum.</p> Signup and view all the answers

<p>Melting point of water is 0 degrees Celsius and boiling point is 100 degrees Celsius.</p> Signup and view all the answers

<p>Salt is soluble in water.</p> Signup and view all the answers

<p>Maple syrup is more viscous than water.</p> Signup and view all the answers

<p>The light a substance reflects gives it color and lustre.</p> Signup and view all the answers

<p>The ability of a substance to conduct electricity or heat.</p> Signup and view all the answers

<p>The amount of mass in a given volume.</p> Signup and view all the answers

<p>Any solid that can be stretched into a long wire is ductile.</p> Signup and view all the answers

<p>Hardness is a substance's ability to resist being scratched.</p> Signup and view all the answers

<p>A substance that can be pounded or rolled into sheets is said to be malleable.</p> Signup and view all the answers

<p>The temperature at which something boils/melts.</p> Signup and view all the answers

<p>The ability to dissolve something.</p> Signup and view all the answers

<p>The resistance of a fluid to flow.</p> Signup and view all the answers

<p>Describes how the chemical behaves and its ability to change into one or more new substances.</p> Signup and view all the answers

<p>Combustibility, reaction with acid, reaction with water.</p> Signup and view all the answers

<p>Gasoline is combustible.</p> Signup and view all the answers

<p>Magnesium metal reacts with acid to produce gas bubbles.</p> Signup and view all the answers

<p>Potassium metal reacts with water.</p> Signup and view all the answers

<p>Unique properties to each pure substance.</p> Signup and view all the answers

<p>Density equals mass divided by volume (D = m/V).</p> Signup and view all the answers

<p>A mineral that can supply a useful metal at a reasonable cost.</p> Signup and view all the answers

<p>In the earth's crust.</p> Signup and view all the answers

<p>Metals are solid at room temperature (except Mercury), silver-gray (except gold and copper), good conductors of heat and electricity, have metallic lustre, and are malleable and ductile.</p> Signup and view all the answers

<p>Non-metals are poor conductors of heat and electricity, have no metallic lustre, and break when hammered.</p> Signup and view all the answers

<p>Givens, Required, Arrange, Substitute, Solve.</p> Signup and view all the answers

<p>Volume = length x width x height.</p> Signup and view all the answers

<p>Trail mix.</p> Signup and view all the answers

<p>Kool-Aid.</p> Signup and view all the answers

<p>Cannot be broken down into simpler parts by chemical method.</p> Signup and view all the answers

<p>Made of two or more elements that are chemically combined.</p> Signup and view all the answers

<p>Iron (Fe).</p> Signup and view all the answers

<p>Water.</p> Signup and view all the answers

<p>Ability of a substance to burn.</p> Signup and view all the answers

<p>Ability of a substance to react with acid and produce a gas.</p> Signup and view all the answers

<p>Ability of a substance to react with water.</p> Signup and view all the answers

<p>Matter that contains only one kind of particle.</p> Signup and view all the answers

<p>Matter that contains more than one kind of particle.</p> Signup and view all the answers

<p>A pure substance made of two or more different elements that are chemically combined.</p> Signup and view all the answers

<p>A pure substance that cannot be broken down into simpler parts by chemical methods.</p> Signup and view all the answers