18. oxygen, sodium, and boron are examples of what type of matter? (4 points) solution compound element heterogeneous mixture 19. the compound h2o is an example of a(n) (4 points) covalent compound ionic compound mixture trionic compound 20. a measure of the amount of matter in an object is (4 points) volume mass weight density 21. a substance that has a uniform composition and is able to be separated by physical means is a(n) (4 points) solution heterogeneous mixture element compound 22. what type of model is shown? a space-filling model a chemical formula a ball-and-stick model a structural formula 23. a solution (4 points) has a uniform composition and is able to be separated by physical means has a heterogeneous composition and is able to be separated by physical means has a uniform composition and is only able to be separated by chemical means has a heterogeneous composition and is able to be separated by chemical means 24. if a substance is not able to be separated by physical means but is able to be separated by chemical means, it is a(n) (4 points) solution element heterogeneous mixture compound 25. when a nonmetal bonds with a nonmetal, they form a(n) (4 points) covalent compound ionic compound element salt description
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Chemistry, 22.06.2019 05:30
What type of reaction is shown below? check all that apply. 2h2o2 β 2h2o + o2 synthesis decomposition combustion
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Chemistry, 22.06.2019 23:10
Afusion reaction takes place between carbon and another element. neutrons are released, and a different element is formed. the different element is a) lighter than helium.b)heavier than helium.c)the same weight as helium.d)dependent on the element that reacted with carbon.
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Chemistry, 23.06.2019 01:30
What is produced from neutralization of an acid and a base? a. hydronium ions b. citric acid c. salt and water
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18. oxygen, sodium, and boron are examples of what type of matter? (4 points) solution compound ele...
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