Chemistry, 15.09.2019 19:10 ccispoppin12
Someone me! answer book questions: 1,2,3,4,8,9,10,12,16,17! (be sure to look at the two pictures i have linked)
1. what are the two characteristic properties of matter?
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2. why can’t we see atoms with the naked eye?
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4.what does it mean to say that a given compound always has the same composition?
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8. elemental bromine is a dense, dark red, pungent- smelling liquid. are these characteristics of elemental bromine physical or chemical properties?
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9. elemental bromine reacts vigorously with elemental sodium metal to form a white solid. does this characteristic of elemental bromine represent a physical or a chemical property?
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• magnesium metal is very malleable, and it is able to be pounded and stretched into long, thin, narrow “ribbons” that are often used in chemistry labs as a source of the metal. if a strip of magnesium ribbon is ignited in a bunsen burner flame, the magnesium burns brightly and produces a quantity of white magnesium oxide powder.
10. from the information given above, indicate one physical property of magnesium metal.
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12.what is meant by electrolysis? are the changes produced by electrolysis chemical or physical in nature? give an example to show your reasoning.
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16. classify the following as mixtures or pure substances:
a. the atlantic ocean on a sunny day
b. the brass instrument you play in the band
c. the salt on your pretzels
d. the soil you use to pot a plant
17. classify the following mixtures as homogeneous or heterogeneous:
a. gasoline
b. a jar of jelly beans
c. chunky peanut butter
d. margarine
e. the paper on which this question is printed
Answers: 2
Chemistry, 22.06.2019 04:00
The image shows a process that releases nuclear energy which statement best identifies the process shown the process must be fusion because energy is released the process must be fusion because of have your nucleus formed a smaller nuclei the process must be fission because a large nucleus breaks into smaller nuclei the process must be fission because neutrons are formed
Answers: 1
Chemistry, 22.06.2019 13:10
Select the correct answer a modure consists of glucose and water. what is the percent composition of glucose in the mixture if it contains 1.3 moles of glucose (cho total mass of the mature is 276 grams? ) and the a 1775
Answers: 1
Chemistry, 22.06.2019 16:00
He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98
Answers: 2
Someone me! answer book questions: 1,2,3,4,8,9,10,12,16,17! (be sure to look at the two picture...
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