Chemistry, 28.09.2021 01:30 terribrady98
Is the following statement a qualitative or quantitative observation?
The cat video is 5 minutes and 35 seconds long.
Question 4 options:
Qualitative
Quantitative
Answers: 3
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Rutherford's experiment indicated that matter was not as uniform as it appears what part of his experimental results implied this idea
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Asa choose the correct set of reaction coefficients to properly balance the following chemical equation according to the law of conservation of mass: __s8 + __o2 ==> __so2 1, 1, 8 1, 8, 1 1, 8, 8 8, 1, 1
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1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false
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Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.
Answers: 2
Is the following statement a qualitative or quantitative observation?
The cat video is 5 minutes a...
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