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60 Cards in this Set
- Front
- Back
compressed _____
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gas
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________________ infectious material
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bio-hazardous
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________________ material
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corrosive
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dangerously ____________ material
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reactive
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flammable and ___________ material
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conbustible
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____________ material
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oxidizing
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poisonous and _____________ material causing immediate and _______________ effects
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infectious
serious |
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______________ material causing other toxic effects
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poisonous
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bio-hazardous infectious material
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compressed gas
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corrosive material
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dangerously reactive material
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flammable and combustible material
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oxidizing material
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poisonous and infectious material causing immediate and serious toxic effects
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poisonous material causing other toxic effects
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Describe the particles in a solid:
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Particles are very close to one another, fixed in position, and they vibrate.
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Describe the particles in a liquid:
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All particles are still close, but now have enough space to slide past one another.
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Describe the particles in a gas:
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All particles are highly energetic and move freely to spread out in their container. Further heating gives particles even more kinetic energy.
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_______________ is anything that has mass and volume. According to the kinetic molecular theory, all matter is made of very small ______________ that are constantly moving.
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matter
particles |
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___________ is the amount of matter in an object. The amount of space an object occupies is its ___________. The ratio of a material's mass to its volume is its _____________.
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mass
volume density |
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There are three _________ of matter: solid, liquid and gas. Each of these can change when _______________ is added or removed.
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states
heat |
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The temperature at which ice turns to water is the ________________. The temperature at which water turns to water vapour is the _____________.
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melting point
boiling point |
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_________________ describes how easily electricity or heat can move through a material.
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conductivity
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________ energy is the energy of movement.
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kinetic
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Particles of a ____________ are packed so tightly together that they can only vibrate in place. Particles of a ____________ are farther apart and can slide past each other. Particles of a ____________ are very far apart and move around freely and quickly.
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solid
liquid gas |
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The kinetic molecular theory describes what happens to the particles of matter during a _________________.
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change of state
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Oxygen and gold are examples of _____________________, which cannot be broken down or separated into simpler substances.
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elements
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What is matter?
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Any substance or object that has mass or volume.
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What is mass?
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The amount of matter in a substance or object.
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What is volume?
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The amount of space that an object takes up.
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What is density?
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The ratio of a material's mass to its volume.
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What is conductivity?
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How easily something lets electricity or heat move through it.
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What is an element?
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A pure substance whose particles cannot be broken down further and still keep their original properties.
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Matter can undergo 2 types of changes: _________ change and _________ change.
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physical
chemical |
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99.99% of an atom's ______ is in the nucleus
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mass
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Electrons occupy _________ of the volume.
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most
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All of the ____________ charge in an atom is in the nucleus
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positive
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A _____________ change is when new ________ are formed while others are chemical bonds are _________. Is it reversible: _______.
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chemical
chemicals/substances broken NO |
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A _____________ change has _______ new substances formed. The _________ is changed but not chemical ________.
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physical
no form composition |
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___________ energy is when energy is ______________ (heat/light)
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exothermic
released |
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_______________ energy is energy that is _______
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endothermic
absorbed |
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What are the main points of the KMT?
(Kinetic Molecular Theory) |
1. Matter is made of small particles.
2. There is empty space between particles. 3. Particles are constantly moving. 4. Energy makes particles move. |
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What is a physical change?
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When a substance changes in form but not its chemical composition.
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What is a chemical change?
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It causes new substances to be formed.
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Where is most of the mass in an atom?
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The nucleus
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Where is most of the volume in an atom?
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The electrons
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What is exothermic energy?
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The process when energy is released.
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What is endothermic energy?
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Energy that is absorbed.
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_____________ suggested that matter is made up of atoms.
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Dalton
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_____________ proposed that atoms contain negatively charged particles later called ________________.
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Thomson
electrons |
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______________ discovered the nucleus and its subatomic particles.
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Rutherford
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_______________ proposed that electrons are located in _________ around the nucleus.
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Bohr
shells |
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Electrons have different amounts of ________ and can jump back and forth between the energy levels.
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energy
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What is an atom?
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The smallest particle of an element that has the same properties.
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What are some subatomic particles?
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electrons, protons, and neutrons
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What did Dalton suggest?
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That matter is made up of atoms.
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What did Thomson propose?
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That atoms contain electrons
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What did Rutherford discover?
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The nucleus
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What did Bohr propose?
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Electrons are located in shells around the nucleus.
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