2. identify each of the common items below as an element, a compound or a mixture. their chemical formulas have been given to help you out. .25 point each
a. sugar (c₆h₁₂o₆)
b. phosphorus (p₄)
c. battery acid (h₂so₄)
d. air (n₂ & o₂ & ar & co₂...)
e. oxygen (o₂)
f. milk (c₁₂h₂₂o₁₁ & h₂o & c₅₀h₁₀₂o₃...)
g. gold (au)
h. granite (sio₂ & kalsi₃o₈ & k₂si₃o₈...)
i. drain cleaner (al & naoh & ...)
j. sodium (na)
k. water (h₂o)
l. salt water (nacl & h₂o)

Question

Accepted Answer

# Explanation:
## Step1: Recall definitions
An element is a pure substance made of only one type of atom. A compound is a pure - substance made of two or more different types of atoms chemically combined. A mixture is a combination of two or more substances that are not chemically combined.
## Step2: Analyze Sugar ($C_6H_{12}O_6$)
It is made of carbon, hydrogen, and oxygen atoms chemically combined, so it is a compound.
## Step3: Analyze Phosphorus ($P_4$)
It is made of only phosphorus atoms, so it is an element.
## Step4: Analyze Battery Acid ($H_2SO_4$)
It is made of hydrogen, sulfur, and oxygen atoms chemically combined, so it is a compound.
## Step5: Analyze Air ($N_2$ & $O_2$ & $Ar$ & $CO_2$...)
It is a combination of different gases not chemically combined, so it is a mixture.
## Step6: Analyze Oxygen ($O_2$)
It is made of only oxygen atoms, so it is an element.
## Step7: Analyze Milk ($C_{12}H_{22}O_{11}$ & $H_2O$ & $C_{50}H_{10}2O_3$...)
It is a combination of different substances not chemically combined, so it is a mixture.
## Step8: Analyze Gold (Au)
It is made of only gold atoms, so it is an element.
## Step9: Analyze Granite ($SiO_2$ & $KAlSi_3O_8$ & $K_2Si_3O_{10}$...)
It is a combination of different substances not chemically combined, so it is a mixture.
## Step10: Analyze Drain cleaner (Al & NaOH & ...)
It is a combination of different substances not chemically combined, so it is a mixture.
## Step11: Analyze Sodium (Na)
It is made of only sodium atoms, so it is an element.
## Step12: Analyze Water ($H_2O$)
It is made of hydrogen and oxygen atoms chemically combined, so it is a compound.
## Step13: Analyze Salt water ($NaCl$ & $H_2O$)
It is a combination of salt and water not chemically combined, so it is a mixture.

# Answer:
A. Compound
B. Element
C. Compound
D. Mixture
E. Element
F. Mixture
G. Element
H. Mixture
I. Mixture
J. Element
K. Compound
L. Mixture

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QUESTION IMAGE

Question

Explanation:

Step1: Recall definitions

Step2: Analyze Sugar ($C_6H_{12}O_6$)

Step3: Analyze Phosphorus ($P_4$)

Step4: Analyze Battery Acid ($H_2SO_4$)

Step5: Analyze Air ($N_2$ & $O_2$ & $Ar$ & $CO_2$...)

Step6: Analyze Oxygen ($O_2$)

Step7: Analyze Milk ($C_{12}H_{22}O_{11}$ & $H_2O$ & $C_{50}H_{10}2O_3$...)

Step8: Analyze Gold (Au)

Step9: Analyze Granite ($SiO_2$ & $KAlSi_3O_8$ & $K_2Si_3O_{10}$...)

Step10: Analyze Drain cleaner (Al & NaOH & ...)

Step11: Analyze Sodium (Na)

Step12: Analyze Water ($H_2O$)

Step13: Analyze Salt water ($NaCl$ & $H_2O$)

Answer: