Chemical Reactions Chemistry

What are the missing coefficients in the chemical reaction shown?

• 4, 6, 6, 2

• 2, 3, 2, 3

• 2, 3, 3, 2

• 2, 3, 1, 2

Tags

NGSS.HS-PS1-7

Create a skeleton equation and balance. Determine the coefficient and symbol for iodine?

• 2I^-

• I

• 2I

• I₂

• 2I₂

Tags

NGSS.MS-PS1-5

Create a skeleton equation. Balance and determine the coefficient and symbol for fluorine?

• 3F

• 6F₂

• F₃

• 6F

• 3F₂

Tags

NGSS.HS-PS1-7

NGSS.HS-PS1-2

Aluminum chloride and bubbles of hydrogen gas are produced when aluminum metal is placed in hydrochloric acid. Give a balanced skeleton equation for this reaction?

• 
• 
• 
• 

Which of the following is NOT a diatomic molecule?

• iodine

• hydrogen

• oxygen

• nitrogen

• sulfur

Tags

NGSS.MS-PS1-1

• 1

• 2

• 3

• 6

Tags

NGSS.HS-PS1-7

• 2

• 3

• 4

• 6

Tags

NGSS.HS-PS1-7

Which of the following is NOT a true statement concerning what happens in all chemical reactions?

• The ways in which the atoms are joined together changed.

• New atoms are formed as products.

• The starting materials are named reactants.

• The bonds of the reactants are broken and new bonds of the products are formed.

Tags

NGSS.HS-PS1-7

Predict the products: Mg + HCl -->

• MgCl₂ + H₂

• No reaction

• MgH₂ + Cl₂

• MgCl + H

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

Predict the products: Fe⁺³ + O₂ -->

• FeO

• Fe₂O₂

• Fe₃O₂

• Fe₂O₃

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1