Question 1

Which is an example of a physical change?

Accepted Answer

A) The rusting of an iron nail 
B) The burning of propane in a gas grill 
C) Baking cookies 
D) Polishing tarnished silver 
E) Melting of an ice cube in a glass of soda 
A) The rusting of an iron nail 
B) The burning of propane in a gas grill 
C) Baking cookies 
D) Polishing tarnished silver 
E) Melting of an ice cube in a glass of soda

Question 2

An oven is set for a temperature of 298 °F. What is the oven temperature in K?

Accepted Answer

A) 166 K 
B) 421 K 
C) 148 K 
D) 571 K 
E) 439 K 
A) 166 K 
B) 421 K 
C) 148 K 
D) 571 K 
E) 439 K

Question 3

Elements and compounds are both classified as pure substances.

Accepted Answer

A) True 
 B)False

Question 4

The water molecules in this image are best described as being in the liquid state.

Accepted Answer

A) True 
 B)False

Question 5

Assuming the numbers are measured values, when multiplying 762.85 by 15 the answer should be reported with two significant figures.

Accepted Answer

A) True 
 B)False

Question 6

Dissolving sugar in water involves a chemical change.

Accepted Answer

A) True 
 B)False

Question 7

The density of olive oil is greater at 200 °C than at 25 °C.

Accepted Answer

A) True 
 B)False

Question 8

A small banana contains 323 mg of the nutrient potassium. You would need to eat approximately _____ small bananas in one day to obtain the recommended daily intake of 3.5 g of potassium.

Accepted Answer

The answer of A small banana contains 323 mg of...

Question 9

The number 900, 027, 300 has four significant figures.

Accepted Answer

A) True 
 B)False

Which is an example of a physical change?

An oven is set for a temperature of 298 °F. What is the oven temperature in K?

Elements and compounds are both classified as pure substances.

The water molecules in this image are best described as being in the liquid state.

Assuming the numbers are measured values, when multiplying 762.85 by 15 the answer should be reported with two significant figures.

Dissolving sugar in water involves a chemical change.

The density of olive oil is greater at 200 °C than at 25 °C.

A small banana contains 323 mg of the nutrient potassium. You would need to eat approximately _____ small bananas in one day to obtain the recommended daily intake of 3.5 g of potassium.

The number 900, 027, 300 has four significant figures.

Atoms and the Periodic Table

Ionic Compounds

Covalent Compounds

Chemical Reactions

Energy Changes, Reaction Rates, and Equilibrium

Gases, Liquids, and Solids

Solutions

Acids and Bases

Nuclear Chemistry

Introduction to Organic Molecules and Functional Groups

Alkanes

Unsaturated Hydrocarbons

Organic Compounds That Contain Oxygen, Halogen, or Sulfur

The Three-Dimensional Shape of Molecules

Aldehydes and Ketones

Carboxylic Acids, Esters, and Amides

Amines and Neurotransmitters

Lipids

Carbohydrates

Amino Acids, Proteins, and Enzymes

Nucleic Acids and Protein Synthesis

Digestion and the Conversion of Food Into Energy

Carbohydrate, Lipid, and Protein Metabolism

Filters

Exam 1: Matter and Measurement

Which is an example of a physical change?

An oven is set for a temperature of 298 °F. What is the oven temperature in K?

Elements and compounds are both classified as pure substances.

The water molecules in this image are best described as being in the liquid state.

Assuming the numbers are measured values, when multiplying 762.85 by 15 the answer should be reported with two significant figures.

Dissolving sugar in water involves a chemical change.

The density of olive oil is greater at 200 °C than at 25 °C.

A small banana contains 323 mg of the nutrient potassium. You would need to eat approximately _____ small bananas in one day to obtain the recommended daily intake of 3.5 g of potassium.

The number 900, 027, 300 has four significant figures.

Atoms and the Periodic Table

Ionic Compounds

Covalent Compounds

Chemical Reactions

Energy Changes, Reaction Rates, and Equilibrium

Gases, Liquids, and Solids

Solutions

Acids and Bases

Nuclear Chemistry

Introduction to Organic Molecules and Functional Groups

Alkanes

Unsaturated Hydrocarbons

Organic Compounds That Contain Oxygen, Halogen, or Sulfur

The Three-Dimensional Shape of Molecules

Aldehydes and Ketones

Carboxylic Acids, Esters, and Amides

Amines and Neurotransmitters

Lipids

Carbohydrates

Amino Acids, Proteins, and Enzymes

Nucleic Acids and Protein Synthesis

Digestion and the Conversion of Food Into Energy

Carbohydrate, Lipid, and Protein Metabolism

Filters