Formula is moles =massin grams of HNO3/molar mass of HNO3
Answer:
<u>an element with a large number of valence electrons and a large atomic radius</u>
Explanation:
Electronegativity means a tedency when an atom attracts bonding electrons in a covalent bond situation.
» If an atom has many valency electrons [ <em>empty</em><em> </em><em>orbitals</em><em> </em><em>i</em><em>n</em><em> </em><em>o</em><em>u</em><em>t</em><em>e</em><em>r</em><em>m</em><em>o</em><em>s</em><em>t</em><em> </em><em>s</em><em>h</em><em>e</em><em>l</em><em>l</em><em> </em>], it has difficulty in attracting electrons hence electronegativity low.
» If an atom is large, its nuclear attraction force of incoming electrons is low hence low electronegativity.

Answer:
Soluable
Explanation:
Because salt dissolves in water.. Your question has no background information to go off of
Balanced equation :
Fe2(SO4)3 + 3Pb(ClO4)2 → 2Fe(ClO4)3 + 3PbSO4
<h3>Further explanation</h3>
Given
Word equation
Required
Balanced equation
Solution
Chemical equations can be expressed in terms of:
- word equation
- skeleton equation
- balanced equation
Word equation :
a solution of iron 3 sulfate and a solution of lead 2 perchlorate react to produce lead 2 sulfate precipitate
Skeleton equation :
Fe2(SO4)3 + Pb(ClO4)2 → Fe(ClO4)3 + PbSO4
Balanced equation :
Fe2(SO4)3 + 3Pb(ClO4)2 → 2Fe(ClO4)3 + 3PbSO4