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.HS-PS1-1

NGSS.HS-PS1-2

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

What is the correct formula for Sodium Oxide?

• NaO
• NaO₂
• Na₂O
• Na₂O₂

Tags

NGSS.HS-PS1-1

Name the following ionic compound: BeCl₂

• beryllium chlorine
• beryllium II chloride
• beryllium chloride
• beryllium dichloride

Which is NOT a diatomic molecule?

• Fluorine
• Nitrogen
• Boron
• Bromine

___________________ are the elements or compounds that are formed in a chemical reaction.

• Polymers

• Bonds

• Reactants

• Products

Which part of the chemical equation is the product?

C₆H₁₂O₆ + 6O₂ ---> 6CO₂ + 6H₂O

• C₆H₁₂O₆ + 6O₂

• 6CO₂ + 6H₂O

Tags

NGSS.HS-LS1-7

Which type of chemical reaction is pictured?

C₆H₁₂O₆ + 6O₂ ---> 6CO₂ + 6H₂O

• decomposition

• single replacement

• synthesis

• combustion

The reactants are on the left side of the chemical equation.

• True
• False

A chemical reaction is ___________________.

• when substances undergo changes that result in a new substance
• a characteristic of a substance that can be observed without changing the substance into another substance
• when substances undergo changes that alter their form or physical appearance

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5