Question 1

Which of the following best describes an atom with a charge?

Accepted Answer

A) Ion 
B) Isotope 
C) Radiation 
D) Compound 
A) Ion 
B) Isotope 
C) Radiation 
D) Compound

Question 2

Which of the following represents an ion?

Accepted Answer

A) 6 protons, 4 neutrons, and 5 electrons 
B) 6 protons, 5 neutrons, and 6 electrons 
C) 6 protons, 4 neutrons, and 6 electrons 
D) 6 protons, 6 neutrons, and 6 electrons 
A) 6 protons, 4 neutrons, and 5 electrons 
B) 6 protons, 5 neutrons, and 6 electrons 
C) 6 protons, 4 neutrons, and 6 electrons 
D) 6 protons, 6 neutrons, and 6 electrons

Question 3

The mass of a grain of sand is 1.672 × 10-4 kg. Express this number in standard notation.

Accepted Answer

A) 0)0001672 kg 
B) 1,672 kg 
C) 0)00001672 kg 
D) 1,672,000 kg 
A) 0)0001672 kg 
B) 1,672 kg 
C) 0)00001672 kg 
D) 1,672,000 kg

Question 4

Which of the following occurs at 100°C?

Accepted Answer

A) Ice melts 
B) Pure water sublimes 
C) Pure water boils 
D) Pure water freezes 
A) Ice melts 
B) Pure water sublimes 
C) Pure water boils 
D) Pure water freezes

Question 5

Normal body temperature is considered to be 98.6oF. What is the normal body temperature in degrees Celsius?

Accepted Answer

A) 37° C 
B) 100° C 
C) 32° F 
D) 21° C 
A) 37° C 
B) 100° C 
C) 32° F 
D) 21° C

Question 6

In a chemical equation, what do (aq), (l), (g), and (s) represent?

Accepted Answer

A) Products 
B) States of matter 
C) Solubility of reactants 
D) Reactants 
A) Products 
B) States of matter 
C) Solubility of reactants 
D) Reactants

Question 7

Which of the following is not a carbohydrate?

Accepted Answer

A) Cellulose 
B) Sugar 
C) Protein 
D) Starch 
A) Cellulose 
B) Sugar 
C) Protein 
D) Starch

Question 8

What is the oxidation number of oxygen?

Accepted Answer

A) 0 
B) 1+ 
C) 1- 
D) 2- 
A) 0 
B) 1+ 
C) 1- 
D) 2-

Question 9

How many neutrons does 58Cr have?

Accepted Answer

A) 35 
B) 58 
C) 34 
D) 36 
A) 35 
B) 58 
C) 34 
D) 36

Question 10

Sucrose is an example of what type of carbohydrate?

Accepted Answer

A) Monosaccharide 
B) Disaccharide 
C) Oligosaccharide 
D) Polysaccharide 
A) Monosaccharide 
B) Disaccharide 
C) Oligosaccharide 
D) Polysaccharide

Question 11

What state of matter are unsaturated fats at room temperature?

Accepted Answer

A) Liquid 
B) Solid 
C) Plasma 
D) Gas 
A) Liquid 
B) Solid 
C) Plasma 
D) Gas

Question 12

How many moles of LiOH are in 500 mL of a 1.50 M LiOH solution?

Accepted Answer

A) 0)75 moles LiOH 
B) 3)0 moles LiOH 
C) 0)375 moles LiOH 
D) 2)25 moles LiOH 
A) 0)75 moles LiOH 
B) 3)0 moles LiOH 
C) 0)375 moles LiOH 
D) 2)25 moles LiOH

Question 13

Which of the following is the SI unit of length?

Accepted Answer

A) Inches 
B) Kilometer 
C) Meter 
D) Feet 
A) Inches 
B) Kilometer 
C) Meter 
D) Feet

Question 14

Which of the following molecules will have hydrogen bonding?

Accepted Answer

A) BF3 
B) CH4 
C) C6H6 
D) HCl 
A) BF3 
B) CH4 
C) C6H6 
D) HCl

Question 15

Which of the following is the correct sequence of aerobic respiration?

Accepted Answer

A) Electron transport, Krebs cycle, and glycolysis 
B) Glycolysis, electron transport, and Krebs cycle 
C) Glycolysis, Krebs cycle, and electron transport 
D) Krebs cycle, glycolysis, and Krebs cycle 
A) Electron transport, Krebs cycle, and glycolysis 
B) Glycolysis, electron transport, and Krebs cycle 
C) Glycolysis, Krebs cycle, and electron transport 
D) Krebs cycle, glycolysis, and Krebs cycle

Question 16

When ethylamine is added to water, it creates an alkaline solution. Which of option below would best represent the pH of this solution?

Accepted Answer

A) 11.9 
B) 7)0 
C) 5)0 
D) 1)5 
A) 11.9 
B) 7)0 
C) 5)0 
D) 1)5

Question 17

Which of the following is a true statement?

Accepted Answer

A) Electrons have a positive charge. 
B) Electrons are located in the nucleus. 
C) Neutrons orbit the nucleus. 
D) Protons have a positive charge. 
A) Electrons have a positive charge. 
B) Electrons are located in the nucleus. 
C) Neutrons orbit the nucleus. 
D) Protons have a positive charge.

Question 18

The half-life of As-81 is 33 seconds. If only 12.5 g of a 100.0 g sample of As-81 is left, how long did it take for the original sample to decay to its current mass?

Accepted Answer

A) 99 s 
B) 16.5 s 
C) 66 s 
D) 33 s 
A) 99 s 
B) 16.5 s 
C) 66 s 
D) 33 s

Question 19

Use the periodic table to answer the following question, if needed.
What is the identity of an atom with 24 protons, 30 neutrons, and 24 electrons?

Accepted Answer

A) Vanadium 
B) Chromium 
C) Zinc 
D) Xenon 
A) Vanadium 
B) Chromium 
C) Zinc 
D) Xenon

Question 20

Which element on the periodic table has 8 protons?

Accepted Answer

A) Carbon 
B) Nitrogen 
C) Boron 
D) Oxygen 
A) Carbon 
B) Nitrogen 
C) Boron 
D) Oxygen

Which of the following best describes an atom with a charge?

Which of the following represents an ion?

The mass of a grain of sand is 1.672 × 10^-4 kg. Express this number in standard notation.

Which of the following occurs at 100°C?

Normal body temperature is considered to be 98.6^oF. What is the normal body temperature in degrees Celsius?

In a chemical equation, what do (aq), (l), (g), and (s) represent?

Which of the following is not a carbohydrate?

What is the oxidation number of oxygen?

How many neutrons does ⁵⁸Cr have?

Sucrose is an example of what type of carbohydrate?

What state of matter are unsaturated fats at room temperature?

How many moles of LiOH are in 500 mL of a 1.50 M LiOH solution?

Which of the following is the SI unit of length?

Which of the following molecules will have hydrogen bonding?

Which of the following is the correct sequence of aerobic respiration?

When ethylamine is added to water, it creates an alkaline solution. Which of option below would best represent the pH of this solution?

Which of the following is a true statement?

The half-life of As-81 is 33 seconds. If only 12.5 g of a 100.0 g sample of As-81 is left, how long did it take for the original sample to decay to its current mass?

Use the periodic table to answer the following question, if needed. What is the identity of an atom with 24 protons, 30 neutrons, and 24 electrons?

Which element on the periodic table has 8 protons?

HESI-A2-Math

HESI-A2-Vocabulary

HESI-A2-Reading

HESI-A2-Grammar

HESI-A2-Biology

HESI-A2-Physics

HESI-A2-Anatomy & Physiology

Filters

Exam 1: HESI-A2-Chemistry

Which of the following best describes an atom with a charge?

Which of the following represents an ion?

The mass of a grain of sand is 1.672 × 10-4 kg. Express this number in standard notation.

Which of the following occurs at 100°C?

Normal body temperature is considered to be 98.6oF. What is the normal body temperature in degrees Celsius?

In a chemical equation, what do (aq), (l), (g), and (s) represent?

Which of the following is not a carbohydrate?

What is the oxidation number of oxygen?

How many neutrons does 58Cr have?

Sucrose is an example of what type of carbohydrate?

What state of matter are unsaturated fats at room temperature?

How many moles of LiOH are in 500 mL of a 1.50 M LiOH solution?

Which of the following is the SI unit of length?

Which of the following molecules will have hydrogen bonding?

Which of the following is the correct sequence of aerobic respiration?

When ethylamine is added to water, it creates an alkaline solution. Which of option below would best represent the pH of this solution?

Which of the following is a true statement?

The half-life of As-81 is 33 seconds. If only 12.5 g of a 100.0 g sample of As-81 is left, how long did it take for the original sample to decay to its current mass?

Use the periodic table to answer the following question, if needed. What is the identity of an atom with 24 protons, 30 neutrons, and 24 electrons?

Which element on the periodic table has 8 protons?

HESI-A2-Math

HESI-A2-Vocabulary

HESI-A2-Reading

HESI-A2-Grammar

HESI-A2-Biology

HESI-A2-Physics

HESI-A2-Anatomy & Physiology

Filters

The mass of a grain of sand is 1.672 × 10^-4 kg. Express this number in standard notation.

Normal body temperature is considered to be 98.6^oF. What is the normal body temperature in degrees Celsius?

How many neutrons does ⁵⁸Cr have?