HESI A2 Chemistry (V1 & V2) Question and
Answer [2026/2027] | UPDATED ACTUAL
Exam | A+ Verified
• What is the oxidation number for any SIMPLE ion -✓✓ +1 or -1 depending on
the charge of the ion
• How many kilograms are in a pound -✓✓ 0.45
• What is the temperature for freezing point of water in Celsuis -✓✓ 0 degrees
• What is teh conversation of celsius to fahrenheit -✓✓ 0C = 32F
• What is the oxidation number of an element atom -✓✓ 0
• What is the freezing point of sea water in fahrenheit -✓✓ 0F
• How many amino acids are in a dipeptide -✓✓ 2
• If oxygen is in a compound, what would its oxidation number be -✓✓ -2
• Which of the following pH values would lemon juice likely have -✓✓ 2
• What is a pentose -✓✓ 5 carbon sugar
, • What is the oxidation state of the sulfur atom in sulfuric acid (H2SO4) -✓✓ 6
• How many neutrons does carbon 14 have -✓✓ 8
• How many protons does potassium have -✓✓ 19
• How many amino acids are essential for human life -✓✓ 20 amino acids
• 0 K is equal to ____ C -✓✓ -273
• What does amphoteric mean -✓✓ a substance that can act as a acid or base
• What is Kelvin based around -✓✓ absolute zero
• A couple that is a hydrogen or proton donor, corrosive to metals, cause blue
litmus paper becomes red and becomes less acidic when mixed with a base is -✓✓
acid
• Mixture of 2 or more metals are -✓✓ alloys
• Acids are: -✓✓ proton donors (H+)
• Alpha radiation has a + ___ and contains ____ protons and ____ neutrons; they
admit ____ ions -✓✓ +2, 2, 2, Helium
Answer [2026/2027] | UPDATED ACTUAL
Exam | A+ Verified
• What is the oxidation number for any SIMPLE ion -✓✓ +1 or -1 depending on
the charge of the ion
• How many kilograms are in a pound -✓✓ 0.45
• What is the temperature for freezing point of water in Celsuis -✓✓ 0 degrees
• What is teh conversation of celsius to fahrenheit -✓✓ 0C = 32F
• What is the oxidation number of an element atom -✓✓ 0
• What is the freezing point of sea water in fahrenheit -✓✓ 0F
• How many amino acids are in a dipeptide -✓✓ 2
• If oxygen is in a compound, what would its oxidation number be -✓✓ -2
• Which of the following pH values would lemon juice likely have -✓✓ 2
• What is a pentose -✓✓ 5 carbon sugar
, • What is the oxidation state of the sulfur atom in sulfuric acid (H2SO4) -✓✓ 6
• How many neutrons does carbon 14 have -✓✓ 8
• How many protons does potassium have -✓✓ 19
• How many amino acids are essential for human life -✓✓ 20 amino acids
• 0 K is equal to ____ C -✓✓ -273
• What does amphoteric mean -✓✓ a substance that can act as a acid or base
• What is Kelvin based around -✓✓ absolute zero
• A couple that is a hydrogen or proton donor, corrosive to metals, cause blue
litmus paper becomes red and becomes less acidic when mixed with a base is -✓✓
acid
• Mixture of 2 or more metals are -✓✓ alloys
• Acids are: -✓✓ proton donors (H+)
• Alpha radiation has a + ___ and contains ____ protons and ____ neutrons; they
admit ____ ions -✓✓ +2, 2, 2, Helium
