Unit 6 Review

To balance a chemical equation, you may adjust the

• coefficients.

• subscripts.

• formulas of the products.

• both the coefficients and subscripts.

Tags

NGSS.HS-PS1-7

According to the law of conservation of mass, the total mass of the reacting substances is

• sometimes more and sometimes less than the total mass of the products.

• always equal to the total mass of the products.

• always less than the total mass of the products.

• always more than the total mass of the products.

Tags

NGSS.HS-PS1-7

A mixture consists of Ag, PB, and Fe metals.  Which of these metals will react with ZnCl(aq)

• Ag (s)

• Pb (s)

• Fe (s)

• None of the listed metals will react

Tags

NGSS.HS-PS1-1

What is located to the left of the arrow in a chemical equation?

• products

• reactants

• starting materials

• selected precipitates

What is located to the right of the arrow in a chemical equation?

• selected precipitates

• starting materials

• reactants

• products

Based on the activity series of metals which element would replace Sodium in a compound?

• Zinc

• Lead

• Lithium

• Iron

How is a catalyst indicated in a chemical equation

• It is listed as a product

• It is listed as a reactant

• It is written above the yields symbol

• None of the other answers are correct

Classify the pictured reaction

• Synthesis

• Decomposition

• Single Replacement

• Double Replacement

Classify the pictured reaction

• Synthesis

• Decomposition

• Single Replacement

• Double Replacement

Classify the pictured reaction

• Synthesis

• Decomposition

• Single Replacement

• Double Replacement