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elements(reynolds)

elements and perodic table(reynolds)

QuestionAnswer
sodium Chloride NaCI
calcium carbonate CaCo3
sodium bicarbonate NaHCO3
ascorbic acid C6H8O6
Sucrose C12H12O11
Sodium Carbonate Na2CO3
magnesium sulfate MgSO4
Citric acid C6H8O7
How do you tell if there is a new element in a formula? The capital letters
which substance has the greatest number of elements? carbonate
How many different elements are in the nine substances? 3
what element is found in the greatest number of substances? oxygen
how many elements are in the substance carbon dioxide? 2
How many elements are in the substance water 2
which of the nine substances are made of 2 elements? NACL and CACI2
which of the nine substances are made of three elements? CACO3 and MGSO4
Which of the nine substances are made of 4 elements? NAHCO3
what is an element? A fundamental substance that can not be broken down into simpler substances during chemical reactions .
How are matter and elements related? Matter is made of elements and elements combine to make matter.
How was Mendeleyev able to predict the exisitance of elements that had not yet been discovered? organized elements by weight in rows and chemical properties in columns
what is the periodic table of the elements? display of all elements showing how they relate.
what element is among the five most abundant elements in the sun, earth, ocean, atmosphere, and organisms? oxygen
what does it mean when people say everything is made of stardust? elements are created with stars when a star explodes.
why are the elements carbon,hydrogen, oxygen, and nitrogen important to life on earth? makes up 90% of living organisms.
How can there be so many different substances in the world if there are only a few elements that are common? Elements can combine with each other in a million different ways.
Parts of a chemical formula elements, subscripts, coefficiants
what is a subscript? number that tells us how many elements there are
what's a coefficient? tell us how many molecules there are of a substance.
how many chemicaly combined atoms make up a molecule? 2 or more
6 measuring tools? beaker, stop watch,triple beam balance, graduated cylinder, spring scale, meter stick
Created by: Pooh Bear19099
 

 



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