Honors Chemistry Balancing and Writing Skeleton Equations Word Problems

Carbon monoxide gas and oxygen gas react to form carbon dioxide gas

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

Chlorine gas and solid sodium bromide react to form solid sodium chloride and bromine gas

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

 

Choose the most correct sentence to describe the following reaction: Al₂O₃(s) --heat--> Al(s) + O₂(g)

• Aluminum oxide thermally decomposes into aluminum and oxygen.

• Aluminum reacts with dioxygen to make aluminum oxide.

• Solid aluminum(II) oxygen make gas aluminum and oxygen.

• Solid aluminum oxide produces solid aluminum metal and oxygen gas when heated.

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

Choose the 3 words or phrases that mean the same thing as the (aq) symbol

• water

• aqueous

• dissolved in water

• liquid

• solution

Liquid benzene (C₆H₆) reacts with oxygen gas to form carbon dioxide gas and water.

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

What are the 7 elements are always found as diatomics (two bonded together, like X₂) when they are in their pure form (not part of a compound)?

• Br, I, N, Cl, H, O, F

• B, I, N, C, H, O, F

• B, R, O, F, In, C, H

• Br, I, Ni, C, Ho, F

Write skeleton equations for the following reaction: Solid calcium carbonate decomposes to form solid calcium oxide and carbon dioxide gas.

Tags

NGSS.HS-PS1-1

"When heated, solid mercury(II) oxide decomposes into mercury liquid and oxygen gas." What is the reactant?

• mercury(II) oxide

• mercury liquid

• oxygen gas

"Solid zinc oxide is produced by combining zinc powder with oxygen gas." What is the product?

• zinc oxide

• zinc

• oxygen

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5