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Sonja [21]
3 years ago
12

2-An analysis that establishes the chemical identity of the species

Chemistry
2 answers:
In-s [12.5K]3 years ago
8 0
B)Quantitative Synthesis
saw5 [17]3 years ago
7 0

Answer:

C Qualitative Analysis.

Explanation:

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Cis-trans isomers (geometric isomers) are molecules that _____. A) are isomers in which one of the molecules contains an amino g
Paul [167]

Answer:

C) differ in the arrangement of their atoms about a double bond

Explanation:

Cis-trans isomers -

Isomers are the molecules which have the same molecular formula but they differ in their arrangement of atoms.

The two isomers possible are the cis and the trans isomer .

1. Cis - isomer - The priority group or the similar group are at same side of the double bond .

2. trans - isomer -  The priority group or the similar group are at different side of the double bond . ( the group are diagonally present )

Hence , the option about cis - trans isomer is ( c ) .  

7 0
3 years ago
What volume is occupied by 3.760 g of oxygen gas at a pressure of 88.4
Lorico [155]

Answer:

3.2 L

Explanation:

Given data:

Mass of oxygen = 3.760 g

Pressure of gas = 88.4 Kpa (88.4×1000 = 88400 Nm⁻²)

Temperature = 19°C (19+273.15 = 292.15 K)

R = 8.314 Nm K⁻¹ mol⁻¹

Volume occupied = ?

Solution:

Number of moles of oxygen:

Number of moles = mass/ molar mass

Number of moles = 3.760 g/ 32 g/mol

Number of moles = 0.12 mol

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant

T = temperature in kelvin

V = nRT/P

V = 0.12 mol ×  8.314 Nm K⁻¹ mol⁻¹ × 292.15 K /88400 Nm⁻²

V = 291.472 Nm /88400 Nm⁻²

V = 0.0032 m³

m³ to L:

V = 0.0032×1000 = 3.2 L

4 0
3 years ago
7) Which element would have the lowest first ionization energy? *<br> Li<br> Be<br> Na<br> Mg
olga_2 [115]

Answer:

Dos quintos al cuadrado dividido cinco medios a la menos 1.

Explanation:

7 0
3 years ago
Read 2 more answers
the bond formed between the carboxylic acid group of one amino acid and the amino group of the next amino acid is a(n) bond.
Naya [18.7K]

Peptide bonds are amide connections between two amino acids' -carboxyl and -amino groups.

The covalent link created by the dehydration reaction (loss of a water molecule) between the carboxyl group of one amino acid and the amino group on the next is known as a peptide bond. Peptide bonds are created in polypeptides through a condensation reaction between the carboxyl groups of one amino acid and the amino groups of the following amino acid, all while removing water. When the carboxyl group of one molecule combines with the amino group of the other molecule, releasing a molecule of H2O as a result, a peptide bond is created between the two molecules.

Learn more about peptide here-

brainly.com/question/13151387

#SPJ4

4 0
1 year ago
Please help pick more then one answer!!!
rusak2 [61]

Answer: A. B.

Explanation:

5 0
3 years ago
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