How many grams of HF are needed to react with 3.0 moles of Sn?*
10 points
→ SnF2 + H2
Sn + 2 HF
O 309
O 609
120g
2409

120 grams of HF are needed to react with 3.0 moles of Sn

Explanation:

The balanced chemical equation is :

According to stoichiometry:

1 mole of reacts with 2 moles of HF

Thus 3.0 moles of Sn will react = moles of HF

Mass of

Thus 120 grams of HF are needed to react with 3.0 moles of Sn

hope this

explanation:

covalent bonds

consist of pairs of electrons shared by two atoms, and bind the atoms to fixed orientation and requre high energies to break them

ionic bonds

when two atoms differ considerably in their electronegativity, then one of the atoms will lose its electron to the other atom. this results in a positively charged ion(cation) and a negatively charged ion (anion)