what is another term for a solid that forms in an aqueous reaction?

What is another term for a solid that forms in an aqueous reaction?

What is another term for a solid that forms in an aqueous reaction?

Answer: Precipitate

Which of the products in this reaction is a precipitate?

MgCl2(aq) + K2SO4(aq) → MgSO4(s)

+ 2 KCl (aq)

Which of the products in this reaction is a precipitate?

MgCl2(aq) + K2SO4(aq) → MgSO4(s)

+ 2 KCl (aq)

Answer: MgSO4(s)

What types of reactions are these?

A) MgO + 2 Na Na2O + Mg

B) 2 Na + Cl2 2 NaCl

C) CH4 + 2 O2 CO2 + 2 H2OD) MgI2 + 2 NaCl MgCl2 + 2 NaI

E) CO2 C + O2

What types of reactions are these?

A) MgO + 2 Na Na2O + Mg

B) 2 Na + Cl2 2 NaCl

C) CH4 + 2 O2 CO2 + 2 H2OD) MgI2 + 2 NaCl MgCl2 + 2 NaI

E) CO2 C + O2Answer:A)Single Replacement B) SynthesisC) Combustion D) Double ReplacementE) Decomposition

List the two products that can be formed in a combustion reaction?

List the two products that can be formed in a combustion reaction?

Answer: CO2 and H2O

Predict the product that will form from this reaction?

2 Na + 2 HCl → ?

Predict the product that will form from this reaction?

2 Na + 2 HCl → ?

Answer: 2 NaCl + H2

What coefficient will complete this chemical equation?

2 CaF2 + O2 → 2 CaO + ? F2

What coefficient will complete this chemical equation?

2 CaF2 + O2 → 2 CaO + ? F2

Answer: 2

Give all four coefficients that will complete this equation.

__Al + __ H PO → __H + __ AlPO 3 2 44

Give all four coefficients that will complete this equation.

__Al + __ H PO → __H + __ AlPO 3 2 44

Answer: 2,2,3,2

Assign oxidation numbers to the following compound?

K2(SO4)

Assign oxidation numbers to the following compound?

K2(SO4)

Answer:K = +1S = +6O = -2

What reactant will be oxidized in this reaction?

SiO2 + Ca → CaO + Si

What reactant will be oxidized in this reaction?

SiO2 + Ca → CaO + Si

Answer: Ca (it gains a positive charge, so it lost electrons)

If lithium (Li) was reduced in this reaction, what was the reducing agent?

Zn + Li2O → Li + ZnO

If lithium (Li) was reduced in this reaction, what was the reducing agent?

Zn + Li2O → Li + ZnO

Answer: Zn

What does “Oil Rig” stand for?

What does “Oil Rig” stand for?

Answer:O = OxidationI = IsL = Loss

R = ReductionI = IsG = Gain

What do the following symbols stand for in a chemical reaction?

A. (s)B. (g)C. (aq)D. (l)

What do the following symbols stand for in a chemical reaction?

A. (s)B. (g)C. (aq)D. (l)

Answer:A. SolidB. GasC. AqueousD. Liquid

What are the 4 signs that a chemical reaction has happened?

What are the 4 signs that a chemical reaction has happened?

Answer: 1. Color change2. Formation of a gas3. Formation of a precipitate (solid)4. Heat/light produced

Matter cannot be ______ or _______.

Matter cannot be ______ or _______.

Answer: Created or Destroyed

If 15 grams of H2 reacts with 20 grams of O2 , how many grams of

H2O will be in the product?

2 H2 + O2 → 2 H2O

If 15 grams of H2 reacts with 20 grams of O2 , how many grams of

H2O will be in the product?

2 H2 + O2 → 2 H2O

Answer: 35 grams

Which of the following is most likely an oxidation reduction reaction?

A) MgO + 2 Na Na2O + Mg

B) 2 Na + Cl2 2 NaCl

C) MgI2 + 2 NaCl MgCl2 + 2

NaID) CO2 C + O2

Which of the following is most likely an oxidation reduction reaction?

A) MgO + 2 Na Na2O + Mg

B) 2 Na + Cl2 2 NaCl

C) MgI2 + 2 NaCl MgCl2 + 2

NaID) CO2 C + O2Answer: A

Which of the following reactions shows this written equation?

A) Pb2O + Cl → O2 + Pb2ClB) PbO + Cl2 → O + PbCl2

C) PbO + Cl2 → O2 + PbCl2

D) PbO2 + Cl2 → O2 + PbCl

Lead (II) oxide and chlorine react to produce oxygen and lead (II) chloride.

Which of the following reactions shows this equation written correctly?

A) Pb2O + Cl → O2 + Pb2ClB) PbO + Cl2 → O + PbCl2

C) PbO + Cl2 → O2 + PbCl2

D) PbO2 + Cl2 → O2 + PbCl

Lead (II) oxide and chlorine react to produce oxygen and lead (II) chloride.

Answer: C

Write the chemical equation based on the word equation.

Word Equation: Magnesium bromide reacts with potassium to produce potassium bromide and magnesium.

Write the chemical equation based on the word equation.

Word Equation: Magnesium bromide reacts with potassium to produce potassium bromide and magnesium.

Answer: MgBr2 + 2 K → 2 KBr + Mg