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Matter Chap. 2 & 4

Anything that has mass and takes up space. Matter
The amount of space taken up by an object. Volume
The amount of matter in an object. mass
The measure of gravitational force exerted on an object. weight
If you went to the moon, what would change; your mass, your weight, or both? Your weight because the moon has less gravity than Earth.
A ping pong ball and a golf ball have similar volume, but since the golf ball has much more mass, it is (more/less/has the same) dense as the golf ball More dense because there is more mass packed into the same amount of space (volume).
Formula for measuring a rectangular box- volume length x width x height and the unit is cm3 (cubic centimeters)
What are the two properties of matter? Mass and volume
The tendency of an object to resist change in motion (like starting to move or stopping) Inertia
The more mass in an object, the ________________ the inertia. greater - mass is also a measure of inertia. Remember that the more mass and object has, the harder it is to move.
A property of matter that can be observed or measured without changing the matter's identity (thermal conductivity, state, density, solubility, ductility and malleability) Physical Properity
A change that affects one or more physical properties of a substance (ie: melting, freezing, dissolving, condensation, change in state) but does NOT change its identity Physical change
The ability to be hammered or made into thin sheets malleable
Ability to be pulled into thin wire ductile
A measure of the amount of matter in a given amount of space density
What are the two units of density? g/mL or g/cm3
The curve at the surface of a liquid (the level of liquid you measure in a graduated cylinder) meniscus
Which weighs more; a pound of feathers or a pound of bricks? They both weight the same amount. Brinks are denser than feathers.
Property of matter that is based on the ability to change into a new matter Chemical Property
The ability of two or more substances to combine and form one or more new substances Reactivity
What chemical property causes iron to form a new substance when exposed to oxygen? Ability to rust
When one or more substances are changed into new substances that have new and different properties (ie: rusting, change of color, change of odor, production of heat or light) Chemical Change
If I place oil and water in a graduated cylinder, which one will float and why? Oil will float because it is less dense than water.
What is the density of water? 1.0 g/mL
A pure substance that is composed of two or more different elements that have been chemically combined. compound
A pure substance that cannot be separated into simpler substances by chemical or physical methods element
Combination of 2 or more substances that are not chemically combined mixture
Heat, chemical change, and electric current are different required ways to separate components in a (COMPOUND or MIXTURE) compound
How do elements join to form compounds? specific ratios (see your chapter 4 notes)
Combination of two or more substances that are not chemically combined Mixture
In a solution, this is the substance that does the dissolving solvent
In a solution, this substance is dissolved solute
Ability of a substance to dissolve solubility
Homogeneous mixture that appears to be one substance solution
Heterogeneous mixture composed of large particle that settle out of solution if left undisturbed. suspension
Heterogenous mixture composed of medium sized particles that do not settle out of solution colloid
Hydrogen, which is very reactive and can cause an explosion when met with a spark, can chemically bond with oxygen to form water. If hydrogen is explosive, then how is it that water can put out fires? When a compound is formed, it has different chemical and physical properties than the individual elements that make it up.
Created by: drighteous1