Answer:
The periodic table is organized into groups (columns) and periods (rows).
Explanation:
The periodic table is organized into groups (columns) and periods (rows). The first ones contain those elements that have the same valence and have similar characteristics to each other. Example: group IA have valence 1 (they require 1 electron to reach the octet). The exception to this are the noble gases located in the last group to the right of the table, which have already filled their last energy level.
Periods have elements that have the same number of orbitals and have different properties; although the masses are similar.
I think it’s d but let me know if I was eighth or wrong
B.Ag from the latin Argentum
Answer:
aspartate
Explanation:
Aspartic acid, is an α-amino acid that is used in the biosynthesis of proteins. Similar to all other amino acids, it contains an amino group and a carboxylic acid.
Answer:
0.0270w/v% H3PO4 in the soda
Explanation:
All phosphates reacts producing Ag3PO4. To solve this question we must convert the mass of Ag3PO4 to moles. These moles = moles of H3PO4. We can find, thus, the mass of H3PO4 and the w/v% as follows:
<em>Moles Ag3PO4 -Molar mass: 418.58g/mol-</em>
0.0576g * (1mol / 418.58g) = 1.376x10⁻⁴ moles Ag3PO4 = moles H3PO4
<em>Mass H3PO4 -Molar mass: 97.994g/mol-</em>
1.376x10⁻⁴ moles Ag3PO4 = moles H3PO4 * (97.994g/mol) = 0.0135g H3PO4
<em>w/v%:</em>
0.0135g H3PO4 / 50.0mL * 100 =
<h3>0.0270w/v% H3PO4 in the soda</h3>