Chemical Reactions and Balancing Equations

 Mg  +  ___ HCl  →   MgCl₂  +   H₂

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which reaction type is the following: C₅H₁₀ + O₂ --> CO₂ + H₂O

• Decomposition

• Synthesis

• Combustion

• Endothermic

Identify the type of reaction:

Ca + O₂ --> CaO

• Decomposition

• Synthesis

• Endothermic

• Combustion

Which of the following is an example of synthesis?

• Na + Br₂ --> NaBr

• KClO₃ --> KCl + O₂

• HgO + Cl₂-->HgCl + O₂

• Cl₂ + NaBr --> NaCl + Br₂

Tags

NGSS.MS-PS1-1

This picture is an example of burning a hydrocarbon which is what type of reaction?

• Combustion

• Synthesis

• Endothermic

• Decomposition

Tags

NGSS.MS-PS1-4

Which type of reaction has the following general pattern?

ABC → A + B + C

• synthesis

• combustion

• decomposition

• endothermic

Tags

NGSS.MS-PS1-2

Which of the following is an example of a synthesis reaction?

• AX -> A + X

• A + X -> AX

• ABC -> A + B + C

• CH + 02 -> CO2 + H2O

Tags

NGSS.MS-PS1-5

Which of the following is an example of a decomposition reaction?

• AX -> A + X

• A + X -> AX

• A + B + C -> ABC

• CH + O2 -> CO2 + H20

Tags

NGSS.MS-PS1-5

If a chemical reaction is EXOTHERMIC, the temperature would....

• Stay the same

• Increase

• Decrease

Tags

NGSS.HS-PS1-4

What is the principle of conservation of mass in chemical reactions?

• Mass is neither created nor destroyed.

• Mass is always increased.

• Mass can be converted into energy.

• Mass is always decreased.

Tags

NGSS.MS-PS1-5