Writing Chemical Equations

Which is the correct chemical equation for the following: Solid Zn reacts with silver (I) chloride to produce Zinc (II) chloride and silver metal

• Zn + AgCl → ZnCl₂ + Ag

• ZnCl₂ + Ag → Zn + AgCl

• ZnCl2 + Ag₂ → Zn + AgCl

• Zn₂Cl + Ag → Zn + AgCl

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which is the correct chemical equation for the following: Barium Chloride combined with sodium sulfide yields barium sulfide and sodium chloride

• BaCl + NaS → BaS+ NaCl

• BaCl₂ + Na₂S → BaS+ NaCl

• BaS+ NaCl → BaCl + NaS

• BaCl₂ + Na₂S → BaS+ NaCl₂

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which is NOT a diatomic molecule?

• Fluorine
• Nitrogen
• Boron
• Bromine

Tags

NGSS.MS-PS1-1

Magnesium can be burned in oxygen to produce solid magnesium oxide.

• Mg(s) + O₂(g)→ MgO(s)

• Mg(s) + O(g) → MgO(s)

• Mg(s) + CO₂(g) → MgO(s) + C(s)

• Mg(s) + O₂(g) → Mg₂O₂(s)

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The substances listed on the right side of a chemical equation are the

• Yields
• Reactants
• Products
• Precipitates

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Identify the reactant(s) and product(s) of the reaction.

• All three are reactants and none are products.
• Hydrogen and water are the reactants, and oxygen is the product.
• Water and oxygen are the reactants, and hydrogen is the product.
• Hydrogen and oxygen are the reactants, and water is the product.