class 1
class 2
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class 5
100
It measures the mass of an object
What is balance?
100
its a state of matter ,that its particles are closely packed
What is solid?
100
Limestone can be separated from fossils through the use it
What is vinegar?
100
Its a state of matter that its atoms or molecules are far apart
What is Gas?
100
properties that describe how a material changes into other materials
What is chemical property?
200
the smallest particle of an element that has the properties of the element
What is atom?
200
Its a law states that cannot be created or destroyed during a chemical reaction
What is the law of conservation?
200
in the atom,the particle in the nucleus with no electrical charge
What is neutron?
200
are always listed on the left side of a chemical equation
What is reactant?
200
a negatively charged particle that moves around the nucleus of an atom
What is electron ?
300
a type of matter made up of a combination of elements
What is compound?
300
a change occurs but the material keeps its identity
What is physical change?
300
the part of an atom’s nucleus that is positively charged
What is proton?
300
Its a type of reaction in which Compounds split apart to form smaller compounds in a reaction.
What is decomposition reaction?
300
Bronze and brass are examples of a type of mixture
What is alloy?
400
Elements are arranged in a table
What is periodic table?
400
a solution with so much solute that it is close to being saturated
What is concentrated solution?
400
Its a paper is used to identify acids and bases.
What is indicator paper?
400
the universal solvent because it dissolves in many substances
What is water?
400
a formula that describes what happens during a chemical reaction
What is chemical equation?
500
Its a solution with little solute in a solution in comparison with the amount of solvent
What is diluted solution?
500
a solution that contains all the solute that can be dissolved without changing the temperature
What is saturated solution?
500
its a test in which different substances have the same color flame
What is flame test?
500
4 H + 2O2 _______ 2H2O
What is combination reaction?
500
the process of burning
What is combustion?