Answer:
The Lassaigne's test, also known as
the sodium fusion test, is used in
elemental analysis to determine the
presenceof foreign elements,
specifically halogens, nitrogen, and
sulfur, in an organic compound.
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Answer:
m=4 g Ca
M=ArCa+ArO=56 g/mol
Ca+O2-2CaO
nCa= m/M= 4/40=0.1 moles of Ca
the ratio of moles: 1 mole Ca:2 moles CaO
0.1 moles Ca =0.2 moles CaO
n=m/M
m=n×M
m=0.2×56=11.2 g CaO
Answer:
A.) DNA is a double helix, and RNA is a single strand.
C.) DNA is involved only in transcription, and RNA is involved in both transcription and translation.
E.) DNA does not have uracil as a nitrogen base, but RNA does have uracil as a nitrogen base.
Explanation:
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Answer:
Atomic number = 25 protons
Mass number = ( 25 + 30 ) = 55
Answer:
The Carbonate (CO2−3) Ion
Unlike O3, though, the actual structure of CO32− is an average of three resonance structures. 2. Carbon has 4 valence electrons, each oxygen has 6 valence electrons, and there are 2 more for the −2 charge. This gives 4 + (3 × 6) + 2 = 24 valence electrons
Explanation:
