A. React with bases to form salts
B. Turn litmus paper blue
C. Have a sour taste
D. Conduct electricity in solution
For those aiming to excel in their ATI TEAS test and secure admission into their desired nursing program, ExamGates offers an invaluable resource. Our platform features practice questions meticulously crafted by tutors who have previously aced the exam themselves. With ExamGates, you can access content that is 100% relevant to the test, accompanied by vivid images and illustrations. Additionally, our platform provides comprehensive explanations for both correct and incorrect answers, empowering you to fully grasp the material and optimize your study efforts. Take the first step towards your nursing aspirations with ExamGates today.
Acids turn litmus paper red, not blue. This property distinguishes them from bases, which turn litmus paper blue.
Therefore, the Correct Answer is B.
Which of the following properties is a characteristic of acids?
A. Bitter taste
B. Turn litmus paper blue
C. React with metals to release hydrogen gas
D. Do not Conduct electricity in solution
The Correct Answer is C.Acids react with certain metals to release hydrogen gas. This is a characteristic property of acids known as their reactivity with metals.
Which of the following is not a property of acids?
A. React with bases to form salts
B. Turn litmus paper blue
C. Have a sour taste
D. Conduct electricity in solution
The Correct Answer is B.Acids turn litmus paper red, not blue. This property distinguishes them from bases, which turn litmus paper blue.
What happens to the conductivity of a weak acid solution as it becomes more diluted?
A. Conductivity increases
B. Conductivity decreases
C. Conductivity remains constant
D. It depends on the acid
The Correct Answer is B.As a weak acid solution becomes more diluted, the concentration of ions decreases, leading to a decrease in conductivity. Weak acids only partially ionize in solution, resulting in fewer ions available to conduct electricity.
What effect do acids have on indicators like litmus paper?
A. Turn it blue
B. Turn it red
C. Turn it green
D. No effect
The Correct Answer is B.Acids turn litmus paper red. Litmus is a common indicator that changes color in response to the acidity or basicity of a solution. In the presence of an acid, litmus paper turns red.
Which of the following statements about the taste of acids is true?
A. Acids have a sweet taste
B. Acids have a bitter taste
C. Acids have a sour taste
D. Acids have no taste
The Correct Answer is C.Acids have a sour taste. This is one of their characteristic properties, though tasting chemicals is not safe and should never be done.
Which of the following statements about strong acids is true?
A. They have a low dissociation constant (Ka)
B. They completely dissociate in solution
C. They are poor conductors of electricity
D. They have a pH greater than 7
The Correct Answer is B.Strong acids completely dissociate into ions when dissolved in water, resulting in a high concentration of \(H^+\) ions in solution. This complete ionization distinguishes them from weak acids.
Which of the following metals will not react with hydrochloric acid (HCl)?
A. Iron (Fe)
B. Magnesium (Mg)
C. Zinc (Zn)
D. Gold (Au)
The Correct Answer is D.Gold (Au) is a noble metal and does not react with hydrochloric acid (HCl). Iron, magnesium, and zinc are reactive metals that can undergo displacement reactions with hydrochloric acid to produce hydrogen gas.
How does the pH of an acidic solution compare to that of a neutral solution?
A. The pH of an acidic solution is lower than that of a neutral solution
B. The pH of an acidic solution is higher than that of a neutral solution
C. The pH of an acidic solution is the same as that of a neutral solution
D. The pH of an acidic solution is unpredictable
The Correct Answer is A.The pH scale ranges from 0 to 14, where pH values less than 7 indicate acidic solutions. Therefore, the pH of an acidic solution is lower than that of a neutral solution, which has a pH of 7.
How do acids affect the electrical conductivity of a solution?
A. They decrease conductivity
B. They increase conductivity
C. They have no effect on conductivity
D. It depends on the concentration of the acid
The Correct Answer is B.Acids increase the electrical conductivity of a solution. This is because acids ionize in water to produce hydrogen ions (\(H^+\)), which carry an electric charge.
How does the reaction of an acid with a base affect the pH of the resulting solution?
A. The pH increases
B. The pH decreases
C. The pH remains unchanged
D. It depends on the specific acid and base
The Correct Answer is C.When an acid reacts with a base in a neutralization reaction, the pH of the resulting solution remains unchanged if the quantities of acid and base are stoichiometrically balanced. This is because the \(H^+\) ions from the acid react with the \(OH^-\) ions from the base to form water, effectively neutralizing each other.