Chemical Reactions

What type of reaction is this H2SO3 → H2O + SO2?

• Single replacement

• Double replacement

• Synthesis

• Decomposistion

What type of reaction is C + O2 → CO2

• single replacement

• double replacement

• synthesis

• decomposition

What type of reaction is C3H8 + 5 O2 → 3 CO2 + 4 H2O?

• synthesis

• combustion

• decomposition

• single replacement

What type of reaction is BaCl2(aq) + Na2SO4(aq) → BaSO4(s) + 2 NaCl(aq)?

• single replacement

• double replacement

• decomposition

• synthesis

What type of reaction is Zn(s) + 2 HCl(aq) → ZnCl2(aq) + H2(g)?

• single replacement

• double replacement

• synthesis

• decomposition

Which of these is not a sign of a chemical reaction?

• heat and light produced

• gas production

• color change

• stagnation of chemicals

Tags

NGSS.MS-PS1-2

The starting substances of a reaction are called what?

• products

• reactants

• change

• states of matter

If a compound is dissolved in water it is in what state of matter?

• Solid

• liquid

• gas

• aqueous

The substances that are produced in a chemical reaction are called what?

• reactants

• accelerant

• product

• reaction

Tags

NGSS.HS-PS1-6

If there is an (aq) next to a compound what state of matter is that compound in?

• solid

• liquid

• gas

• aqueous