what are elements
what are compounds
what are mixtures and solutions
how can substances be described
how do substances interact
100
the basic substance that make up all matter are called
elements
100
two or more atoms joined together are called
molecule
100
a fruit salad is an example of
mixture
100
a characteristic of an object that you can observe with your senses observed measured without changing the substance is
physical property
100
describe the way a substance reacts with other substances
chemical property
200
can elements be broken down into another substance by heat light or electricity
yes
200
when atoms of two or more elements combine they form
a compound
200
a solution is a special kind of
mixture
200
examples of physical property
odor mass texture hardness
200
a chemical change that produces new substances with new properties is
chemical change
300
name 4 things that are located inside an atom
nucleus proton neutron and electron
300
every compound has its own properties which are different from the properties from its elements true or false
true
300
in an solution the particles of one substance are spread unevenly through another substance true or false
false
300
a substance that changes does not become a different substance is called
physical change
300
a process that produces one or more substances that are different from their orginal substance is
chemical reaction
400
a chart that classifies elements by their properties is called
periodic table
400
atoms of iron and oxygen
rust is a compound made of....
400
parts in a mixture are not easily sperated true or false
false
400
physical change is
a change in one or more physical properties
400
mixing baking soda with vinegar causes bubbles of a gas is an example of
chemical reaction
500
what are the smallest particle of an element that as the properties of the element
atom
500
is an oxygen molecule a compound why
no because it has only one kind of atom
500
a compound is made of different elements whose atoms are combined
true
500
can matter change from one state to another if its temperature changes enough
yes
500
true or false.. the new substance that form when a chemical change takes place have different physical and chemical properties than the original substance
true or false.. the new substance that from when a chemical change takes place have different physical and chemical properties than the orginal substance true
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