part 3: classify each as physical property (a) or chemical property (b).
13. iron is magnetic.
14. silver will tarnish in air.
15. carbon monoxide is an odorless, colorless gas.
16. fluorine will explode in the presence of hydrogen.
17. apple slices turn brown when they are exposed to air.

part 4: classify the following as a physical change(a) or chemical change (b).
18. two solutions are mixed together and bubbles are produced.
19. kool aid is made by adding the powdered kool aid mix to water.
20. a water bottle freezes to ice when left outside in a chicago winter.
21. while camping and making smores, a marshmallow gets burned.
22. combining milk and lemon juice create sour, spoiled milk.

part 5: lab based questions.
23. charlie wants to create a new chemistry experiment, but he’s not sure if his proposed reaction will work. using your knowledge chemistry, determine whether or not this reaction will occur and predict the products if the reaction will occur:
$\ce{ag2o + mg \
ightarrow \underline{qquad} + \underline{qquad}}$
a. $\ce{agmg + o2}$
b. $\ce{mgo + ag}$
c. $\ce{mg2o + ag}$
d. these reactants will not form products

24. two students are having a disagreement about what the correct products are for the reaction below and need help deciding the correct answer. which of the following accurately represents the products for the reactants below:
$\ce{c2h4 + o2 \
ightarrow ??}$
a. the product is $\ce{c2h4o2}$
b. the products are $\ce{o2h4 + c}$
c. the products are $\ce{co2 + h2o}$
d. the products are $\ce{c2o2 + 4h}$

25. a student just mixed sulfuric acid (hydrogen sulfate) and calcium chloride solution in a test tube, what products would they create?
a. $\ce{hcl (aq) + caso4 (s)}$
b. $\ce{hmg (aq) + clso4 (aq)}$
c. $\ce{h2cl2 (aq) + caso4 (s)}$
d. $\ce{hcl (s) + caso4 (aq)}$

26. a student just mixed sodium hydroxide and copper ii sulfate in a test tube, what products would they create?
a. $\ce{na2so4(aq) + cu(oh)2 (aq)}$
b. $\ce{na2so4(s) + cu(oh)2 (aq)}$
c. $\ce{na2so4(aq) + cu(oh)2 (s)}$
d. $\ce{na2so4(s) + cu(oh)2 (s)}$

Question

part 3: classify each as physical property (a) or chemical property (b).
13. iron is magnetic.
14. silver will tarnish in air.
15. carbon monoxide is an odorless, colorless gas.
16. fluorine will explode in the presence of hydrogen.
17. apple slices turn brown when they are exposed to air.

part 4: classify the following as a physical change(a) or chemical change (b).
18. two solutions are mixed together and bubbles are produced.
19. kool aid is made by adding the powdered kool aid mix to water.
20. a water bottle freezes to ice when left outside in a chicago winter.
21. while camping and making smores, a marshmallow gets burned.
22. combining milk and lemon juice create sour, spoiled milk.

part 5: lab based questions.
23. charlie wants to create a new chemistry experiment, but he’s not sure if his proposed reaction will work. using your knowledge chemistry, determine whether or not this reaction will occur and predict the products if the reaction will occur:
$\ce{ag2o + mg \
ightarrow \underline{qquad} + \underline{qquad}}$
a. $\ce{agmg + o2}$
b. $\ce{mgo + ag}$
c. $\ce{mg2o + ag}$
d. these reactants will not form products

24. two students are having a disagreement about what the correct products are for the reaction below and need help deciding the correct answer. which of the following accurately represents the products for the reactants below:
$\ce{c2h4 + o2 \
ightarrow ??}$
a. the product is $\ce{c2h4o2}$
b. the products are $\ce{o2h4 + c}$
c. the products are $\ce{co2 + h2o}$
d. the products are $\ce{c2o2 + 4h}$

25. a student just mixed sulfuric acid (hydrogen sulfate) and calcium chloride solution in a test tube, what products would they create?
a. $\ce{hcl (aq) + caso4 (s)}$
b. $\ce{hmg (aq) + clso4 (aq)}$
c. $\ce{h2cl2 (aq) + caso4 (s)}$
d. $\ce{hcl (s) + caso4 (aq)}$

26. a student just mixed sodium hydroxide and copper ii sulfate in a test tube, what products would they create?
a. $\ce{na2so4(aq) + cu(oh)2 (aq)}$
b. $\ce{na2so4(s) + cu(oh)2 (aq)}$
c. $\ce{na2so4(aq) + cu(oh)2 (s)}$
d. $\ce{na2so4(s) + cu(oh)2 (s)}$

Accepted Answer

### Part 3: Classify as Physical Property (a) or Chemical Property (b)
#### 13. Iron is magnetic.
# Brief Explanations:
A physical property is a characteristic that can be observed without changing the substance's chemical identity. Magnetism is a physical property as it doesn't involve a chemical reaction.
# Answer:
a

#### 14. Silver will tarnish in air.
# Brief Explanations:
Tarnishing involves a chemical reaction (silver reacting with substances in air to form a new compound), so it's a chemical property.
# Answer:
b

#### 15. Carbon monoxide is an odorless, colorless gas.
# Brief Explanations:
Odor and color are physical properties that can be observed without altering the chemical composition of CO.
# Answer:
a

#### 16. Fluorine will explode in the presence of hydrogen.
# Brief Explanations:
Exploding in a reaction with hydrogen means a chemical change occurs, so this is a chemical property (describes a chemical reactivity).
# Answer:
b

#### 17. Apple slices turn brown when exposed to air.
# Brief Explanations:
Browning involves a chemical reaction (oxidation) of the apple's components, so it's a chemical property.
# Answer:
b

### Part 4: Classify as Physical Change (a) or Chemical Change (b)
#### 18. Two solutions are mixed together and bubbles are produced.
# Brief Explanations:
Bubble production (gas formation) indicates a chemical reaction (new substance formed), so it's a chemical change.
# Answer:
b

#### 19. Kool Aid is made by adding powdered Kool Aid mix to water.
# Brief Explanations:
Dissolving is a physical process (no new substance, just mixing), so it's a physical change.
# Answer:
a

#### 20. A water bottle freezes to ice when left outside in a Chicago winter.
# Brief Explanations:
Freezing is a phase change (liquid to solid) with no chemical change, so it's a physical change.
# Answer:
a

#### 21. While camping and making smores, a marshmallow gets burned.
# Brief Explanations:
Burning involves combustion (chemical reaction, new substances formed), so it's a chemical change.
# Answer:
b

#### 22. Combining milk and lemon juice create sour, spoiled milk.
# Brief Explanations:
Spoiling (curdling) involves a chemical reaction (change in milk's components), so it's a chemical change.
# Answer:
b

### Part 5: Lab - based questions
#### 23. Reaction: $\ce{Ag_{2}O + Mg ->}$
# Explanation:
## Step 1: Identify reaction type
This is a single - displacement reaction. In a single - displacement reaction, a more reactive metal displaces a less reactive metal from its compound. Magnesium (Mg) is more reactive than silver (Ag) (based on the activity series of metals).
## Step 2: Predict products
The general form of a single - displacement reaction for a metal - metal oxide reaction is: Metal + Metal Oxide $	o$ Oxide of the more reactive metal + Less reactive metal. So, Mg (more reactive) will displace Ag from $\ce{Ag_{2}O}$. The reaction will be $\ce{Ag_{2}O + Mg -> MgO + Ag}$.
# Answer:
B. $\ce{MgO + Ag}$

#### 24. Reaction: $\ce{C_{2}H_{4} + O_{2} ->}$
# Explanation:
## Step 1: Identify reaction type
This is a combustion reaction. Hydrocarbons (like $\ce{C_{2}H_{4}}$, ethene) react with oxygen in combustion reactions to produce carbon dioxide ($\ce{CO_{2}}$) and water ($\ce{H_{2}O}$).
## Step 2: Evaluate options
- Option a: $\ce{C_{2}H_{4}O_{2}}$ is not a product of combustion of ethene.
- Option b: Rearranging atoms to form $\ce{O_{2}H_{4}+C}$ is not a valid combustion product.
- Option c: $\ce{CO_{2}+H_{2}O}$ are the correct products of complete combustion of ethene.
- Option d: $\ce{C_{2}O_{2}+4H}$ is not a valid product of this reaction.
# Answer:
c. The products are $\ce{CO_{2}+H_{2}O}$

#### 25. Reaction: $\ce{H_{2}SO_{4}(aq) + CaCl_{2}(aq) ->}$
# Explanation:
## Step 1: Identify reaction type
This is a double - displacement reaction. The general form is $\ce{AB + CD -> AD + CB}$. Here, $\ce{A = H^+}$, $\ce{B = SO_{4}^{2 - }}$, $\ce{C = Ca^{2+}}$, $\ce{D = Cl^-}$.
## Step 2: Predict products
The products will be $\ce{HCl(aq)}$ and $\ce{CaSO_{4}(s)}$ (because $\ce{CaSO_{4}}$ is insoluble in water and precipitates). The reaction is $\ce{H_{2}SO_{4}(aq)+CaCl_{2}(aq)->2HCl(aq) + CaSO_{4}(s)}$.
## Step 3: Evaluate options
- Option a: $\ce{HCl(aq)+CaSO_{4}(s)}$ matches our prediction.
- Option b: $\ce{HMg(aq)+ClSO_{4}(aq)}$ is not a valid product.
- Option c: $\ce{H_{2}Cl_{2}(aq)+CaSO_{4}(s)}$ is incorrect as the formula for hydrochloric acid is $\ce{HCl}$ not $\ce{H_{2}Cl_{2}}$.
- Option d: $\ce{HCl}$ is not a solid and $\ce{CaSO_{4}}$ is not aqueous in this reaction.
# Answer:
A. $\ce{HCl(aq)+CaSO_{4}(s)}$

#### 26. Reaction: $\ce{NaOH(aq) + CuSO_{4}(aq) ->}$
# Explanation:
## Step 1: Identify reaction type
This is a double - displacement reaction. The ions involved are $\ce{Na^+}$, $\ce{OH^-}$, $\ce{Cu^{2+}}$, $\ce{SO_{4}^{2 - }}$.
## Step 2: Predict products
The products will be $\ce{Na_{2}SO_{4}(aq)}$ and $\ce{Cu(OH)_{2}(s)}$ (because $\ce{Cu(OH)_{2}}$ is insoluble in water and precipitates). The reaction is $\ce{2NaOH(aq)+CuSO_{4}(aq)->Na_{2}SO_{4}(aq)+Cu(OH)_{2}(s)}$.
## Step 3: Evaluate options
- Option a: $\ce{Cu(OH)_{2}}$ is not aqueous, it's a solid.
- Option b: $\ce{Na_{2}SO_{4}}$ is soluble and will be aqueous, not solid.
- Option c: $\ce{Na_{2}SO_{4}(aq)+Cu(OH)_{2}(s)}$ matches our prediction.
- Option d: Both $\ce{Na_{2}SO_{4}}$ and $\ce{Cu(OH)_{2}}$ are not solids in this reaction.
# Answer:
C. $\ce{Na_{2}SO_{4}(aq)+Cu(OH)_{2}(s)}$

Sovi.AI - AI Math Tutor

QUESTION IMAGE

Question

Explanation:

Part 3: Classify as Physical Property (a) or Chemical Property (b)

13. Iron is magnetic.

Answer:

14. Silver will tarnish in air.