IOnic equation - 1sec

Which is the correct net ionic equation for the reaction of AgNO₃ and CaCl₂? الي برا مع بعض والي جوا مع بعض

• Ca²⁺(aq) + 2Cl^1- (aq) → CaCl(s)

• Ag⁺(aq) + Cl^1- (aq) → AgCl(s)

• Ag + Cl → AgCl

• Ag⁺ + Ca²⁺ →Ag₂Ca (s)

What coefficients are needed to correctly balance the equation?
_Bi   +   _O₂   →  _Bi₂O₃

• 3,2,3
• 2,3,2
• 4,3,2
• none of these

Tags

NGSS.MS-PS1-5

What must go in the blank space to balance the equation?
4Fe  +  _O₂  → 2Fe₂O₃

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-5

Which is the correct net ionic equation for the reaction of AgNO₃ and CaCl₂?

• Ca²⁺(aq) +  2Cl^- (aq) → CaCl(s)
• Ag⁺(aq)  +  Cl^- (aq) → AgCl(s)
• Ag +  Cl  →  AgCl
• Ag⁺  +  Ca²⁺   →Ag₂Ca (s)

Tags

NGSS.HS-PS1-7

A neutralization reaction will (almost) always produce...

• water & salt
• water
• salt
• water & carbon

A type of chemical that forms solutions that taste sour, due to high concentrations of positive hydrogen ions

• acid

• base

• salt

• pH

If there is excess hydroxide ions, the solution will be...

• acidic
• basic

Zn(OH)₂ is an example of a...

• acid
• base
• salt

H₃PO₄ is an example of a ...

• acid
• base
• salt

Identify the salt in the following equation:

Zn(OH)₂ + HNO₃ ---> H₂O + Zn(NO₃)₂

• Zn(OH)₂

• HNO₃

• H₂O

• Zn(NO₃)₂