Chemistry Quiz #2 Study Guide (Answers)
... • Endothermic Reaction – Energy (heat) entering a reaction (melting, sublimation, evaporation) • Exothermic Reaction – Energy (heat) leaving a reaction (condensation, solidification, deposition) 2. What is the Kinetic Molecular Theory? The theory that all molecules are in constant motion. ...
... • Endothermic Reaction – Energy (heat) entering a reaction (melting, sublimation, evaporation) • Exothermic Reaction – Energy (heat) leaving a reaction (condensation, solidification, deposition) 2. What is the Kinetic Molecular Theory? The theory that all molecules are in constant motion. ...
Unit 3: States of Matter Review
... 7. Which type of solid is likely to have the lowest melting point—an ionic solid or a molecular solid? Explain. 8. The normal boiling point of ethanol is 78.5°C. The normal boiling point of water is 100°C. At 75°C, which liquid, ethanol or water, has the greater vapor pressure? Explain. 9. The heigh ...
... 7. Which type of solid is likely to have the lowest melting point—an ionic solid or a molecular solid? Explain. 8. The normal boiling point of ethanol is 78.5°C. The normal boiling point of water is 100°C. At 75°C, which liquid, ethanol or water, has the greater vapor pressure? Explain. 9. The heigh ...
CHAPTER 2: MATTER
... roll and tumble about each other, flow definite volume and variable shape Gas – high energy, atoms/molecules are moving rapidly and colliding with each other, variable shape and volume Plasma – highest energy, ionized particles, sun, stars, lightning ...
... roll and tumble about each other, flow definite volume and variable shape Gas – high energy, atoms/molecules are moving rapidly and colliding with each other, variable shape and volume Plasma – highest energy, ionized particles, sun, stars, lightning ...
6.2 Solution Varieties
... a. A heterogeneous solution with particle of intermediate size in comparison to Pure solutions and Suspensions. b. They will appear to be homogenous (dispersed phase), but over time gravity will separate the particles into differing layers based upon molecular density. c. Milk is a good example. If ...
... a. A heterogeneous solution with particle of intermediate size in comparison to Pure solutions and Suspensions. b. They will appear to be homogenous (dispersed phase), but over time gravity will separate the particles into differing layers based upon molecular density. c. Milk is a good example. If ...
MATTER QUIZ: What to Study From: PHASE CHANGES
... 6. Icicles growing, candle wax hardening as it cools are examples of: ___________________________________________ 7. Dew forming on grass, water forming on the outside of a glass are examples of: _________________________________________ 8. Ice changing to water, steel changing to liquid steel are e ...
... 6. Icicles growing, candle wax hardening as it cools are examples of: ___________________________________________ 7. Dew forming on grass, water forming on the outside of a glass are examples of: _________________________________________ 8. Ice changing to water, steel changing to liquid steel are e ...
Unit 4: Physical Properties and Changes
... Metalloid – an element that shares some properties of metals and some of non-metals Non-metal – an element that is usually a gas or brittle solid at room temperature, is not malleable or ductile, is a poor conductor of heat and electricity, and is typically not shiny Overflow can – a can used for me ...
... Metalloid – an element that shares some properties of metals and some of non-metals Non-metal – an element that is usually a gas or brittle solid at room temperature, is not malleable or ductile, is a poor conductor of heat and electricity, and is typically not shiny Overflow can – a can used for me ...
FREEZING – is the change of a liquid to a solid. Freezing occurs
... shape permanently. These amorphous solids lose their shape under certain conditions. They act like a slow moving liquid. ...
... shape permanently. These amorphous solids lose their shape under certain conditions. They act like a slow moving liquid. ...
Changes of State
... When salt is made, it forms a lattice, or a strong cube structure. Positive Sodium is attracted to negative Chlorine ...
... When salt is made, it forms a lattice, or a strong cube structure. Positive Sodium is attracted to negative Chlorine ...
Liquid
A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure. As such, it is one of the four fundamental states of matter (the others being solid, gas, and plasma), and is the only state with a definite volume but no fixed shape. A liquid is made up of tiny vibrating particles of matter, such as atoms, held together by intermolecular bonds. Water is, by far, the most common liquid on Earth. Like a gas, a liquid is able to flow and take the shape of a container. Most liquids resist compression, although others can be compressed. Unlike a gas, a liquid does not disperse to fill every space of a container, and maintains a fairly constant density. A distinctive property of the liquid state is surface tension, leading to wetting phenomena.The density of a liquid is usually close to that of a solid, and much higher than in a gas. Therefore, liquid and solid are both termed condensed matter. On the other hand, as liquids and gases share the ability to flow, they are both called fluids. Although liquid water is abundant on Earth, this state of matter is actually the least common in the known universe, because liquids require a relatively narrow temperature/pressure range to exist. Most known matter in the universe is in gaseous form (with traces of detectable solid matter) as interstellar clouds or in plasma form within stars.