I need help with the conversation of mass with this equation NiCl2 + 2NaOH = Ni(OH)2 + 2NaCl

When I did the number of atoms, they weren't balanced... So what do I do?

This is a precipitation reaction: Ni(OH)2 is the formed precipitate.

Reactants:

NaOH

Names: Sodium hydroxide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Caustic soda source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Lye source: wikidata, accessed: 2019-09-02

Appearance: White, waxy, opaque crystals source: wikipedia, accessed: 2019-09-27; White hygroscopic solid in various forms source: ICSC, accessed: 2019-09-04; Colorless to white, odorless solid (flakes, beads, granular form). source: NIOSH NPG, accessed: 2019-09-02

NiCl2

Products:

NaCl – Sodium chloride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02

Other names: {{unbulleted list source: wikipedia, accessed: 2019-09-27, Salt source: wikidata, accessed: 2019-09-02, Table salt source: wikidata, accessed: 2019-09-02

Appearance: Colorless cubic crystals source: wikipedia, accessed: 2019-09-27

Ni(OH)2 – Nickel(II) hydroxide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02

Other names: Nickel hydroxide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, Theophrastite source: wikipedia, accessed: 2019-09-27

Appearance: Green crystals source: wikipedia, accessed: 2019-09-27

Search by reactants (NaOH, NiCl2)

1NaOH + NiCl2 → NaCl + Ni(OH)2

2NaOH + Br2 + NiCl2 → NaCl + NaBr + Ni(OH)3

Search by products (NaCl, Ni(OH)2)

1NaOH + NiCl2 → NaCl + Ni(OH)2

Search by reactants (NaOH, NiCl2) and by products (NaCl, Ni(OH)2)

1NaOH + NiCl2 → NaCl + Ni(OH)2

Explanation:

c.

explanation: