What happens in a flame test?
O A. Electrons are ejected from atoms when a sample is burned in the
flame.
B. Impurities in a sample are burned off in the flame until a pure
sample remains.
O C. A sample is melted in a flame to determine how much energy was
absorbed
O D. Electrons are excited to higher energy levels and their emissions
are observed.
Answers: 3
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Mercury metal is poured into a graduated cylinder that holds exactly 22.5 ml the mercury used to fill the cylinder mass in 306.0 g from this information calculate the density of mercury
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The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth
Answers: 1
What happens in a flame test?
O A. Electrons are ejected from atoms when a sample is burned in the...
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