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$$$ Quiz $$$ States of Matter
Smallest group of particles that retains shape of crystal. Unit cell
Which particles in a liquid evaporate? The particles with the highest KE
True or False? Molecules in a liquid move, but only from a fixed point. False, true for solids
What is the difference between an amorphous and crystalline solid? Amorphous is disordered Crystal is ordered
True or False. Water has a relatively high vapor pressure. False
Why does water have a low vapor pressure? Hydrogen bonding holds water molecules back from evaporating
What are the bonds called between an oxygen and hydrogen atom in one molecule of water? Polar covalent bond
The bonds between adjacent water molecules are called _______? Hydrogen bonds
What is the name for a solid that is dissolved in a solution? Solute
What is the name for a liquid that does the dissolving in a solution? Solvent
It takes a lot of energy to melt ice. Why? Hydrogen bonding creates extra bond energy
A solute plus a solvent gives a _______. Solution
What type of compounds are always electrolytes? Ionic compounds
Which of the following compounds is not an electolyte? LiBr, CF 4, RbCl 2, CsCl CF 4
What does the term like dissolves like mean when a chemist uses it? Polar solutes are dissolved (soluble) by polar solvents Nonpolar solutes are dissolved (soluble) in nonpolar solvents
What are the two types of heterogeneous aqueous systems? Colloids and Suspensions
What is a more common term for a homogeneous aqueous system? Solution
As individual solute ions break away from a crystal, the negatively and positively charged ions become surrounded by solvent molecules. What process is being described? Solvation
True or False. The structure of ice is an irregular closed framework of water molecules arranged like a honeycomb. False, regular open
A substance that interferes with the hydrogen bonding in water is known as a(n) ________. Surfactant
Many unique and important properties of water result from ________. Hydrogen bonding
Colloids, solutions, or suspensions. Which of these exhibits the Tyndall effect? Colloids and suspensions
What is an emulsion? A colloid formed when two liquids are mixed together.
Compare and contrast solutions, colloids, and suspensions based on particle size? Solutions – less than 1 nm Colloids – between 1 nm – 1000 nm Suspensions – greater than 1000 nm
Ionized gas. Plasma
Describe sublimation. Going from solid directly to gas
Describe condensation. Going from gas to liquid
Describe deposition. Going from gas directly to solid
Describe vaporization. Going from liquid to gas.
Phase Diagram of H 2 O Water Vapor <---Condensation Vaporization ---> Water Ice <---Melting Freezing---> Triple Point <---Deposition Sublimation--->
Triatomic molecule Contains covalent bonds Includes partial positive and partial negative charges Where do these charges come from?
Chapter 12 Water.
Chapter 15. Water covers about three quarters of Earth’s surface. All life forms that are known to exist are made mostly of water. You will learn about.
Water and solutions Water Polarity Solubility (like dissolves like)
Chapter 17 “Water and Aqueous Systems”
Chapter 15: Water and Aqueous Systems
Aqueous Solutions Solution - a homogenous mixture mixed molecule by molecule. Solution - a homogenous mixture mixed molecule by molecule. Solvent - the.
Matter: Properties & Change
“Water and Aqueous Systems” “Aqua” Latin = water.
Water and Aqueous Systems Quick Review. Properties of Water Hydrogen bonding – Result in high surface tension and low vapor pressure – **What is a surfactant?
Solutions. Clear Targets Mixture Basics Homogenous – the different parts are unable to be seen Heterogeneous – the different parts of a solution.
Chapter 15 water and aqueous systems
Chapter 17: Water and Aqueous Systems
KEY CONCEPT Water’s unique properties allow life to exist on Earth.
Matter and Energy Objectives: Distinguish between a mixture and a pure substance Describe four common states of matter and how particles behave in.
Chapter 13 States of Matter Liquids and Solids Changes of State.
Section 17.3 Homogeneous Aqueous Solutions
Matter and Composition What is matter? MATTER is anything which has mass and occupies space. Matter is all things that we can see, feel, and smell.
Chapter 15 Review “Water and Aqueous Systems” Pre-AP Chemistry Charles Page High School Stephen L. Cotton.
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