How many grams of HF are needed to react with 3.0 moles of Sn?*
10 points
Sn + 2 HF + SnF2 + H2
O 309
O 609
O 120g
0 240g

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The moths will eventually become extinct

What are you tryna ask us

The proton has a positive charge while the neutron has no charge they both make up the nucleus of the atom while the elections have a negative charge and surround the nucleus of the atom. the protons and electrons are used to calculate the atom's mass whereas the neutrons don't affect the mass