It is Scandium or Sc
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Answer: -Ionic solids are brittle and hard because the electrostatic attractions in the solid again hold the ions in definite positions. Explanation; -Ionic solids are rigid because the multiple interactions between oppositely charged ions hold the charged particles in relatively fixed positions.
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Answer:
Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell's biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate (ATP)
The answer would A. Sand grain I got 100 on the sedimentary assignment.
Mass of SnF₂ produced : 35.634 g
<h3>Further explanation</h3>
Reaction
Sn+2HF⇒SnF₂+H₂
mol Sn (Ar 118.710 g/mol) :
mol SnF₂ = mol Sn = 0.379
mass SnF₂ (MW=156.69 g/mol) :
⇒theoretical