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NLN PAX EXAM QUESTIONS & ANSWERS 2024/2025

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NLN PAX EXAM QUESTIONS & ANSWERS 2024/2025 1 kilogram kg of solid X at 10°C and 1 kg of solid Y at 10°C each absorb 5 joules of heat energy. The final temperatures of X and Y are 15°C and 20°C, respectively. Compared to X, Y must have a lower - ANSWERSspecific heat A method for determin...

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  • August 18, 2024
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  • 2024/2025
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  • NLN PAX
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NLN PAX EXAM QUESTIONS &
ANSWERS 2024/2025

1 kilogram kg of solid X at 10°C and 1 kg of solid Y at 10°C each absorb 5 joules of heat energy. The final
temperatures of X and Y are 15°C and 20°C, respectively. Compared to X, Y must have a lower -
ANSWERSspecific heat



A method for determining the blood alcohol content of a subject is to - ANSWERSuse a Breathalyzer



Gaurd cells which can be found in the leaves of plants are most closely associated with which of these
processes? - ANSWERSEvaporation of water from the plant



If the medulla of the brain in a human was damaged, which of these conditions would most likely result?
- ANSWERSDifficulty in breathing



In ecological succession, the first living thing to colonize a hitherto barren area is called a -
ANSWERSpioneer organism



Night blindness in humans is caused by a lack of - ANSWERSVitamin A



To sterilize a metal probe in the office, a dentist could use a steam sterilizer. If unavailable, the next most
effective method to sterilize the instrument would be - ANSWERSBoiling it in water for 15



In varieties of matter, the term heterogeneous may be applied to - ANSWERSmixtures, but not elements
or compounds



Heat energy is absorbed in which of these phase changes? - ANSWERSBr2 (l) -> Br2 (g)



Iodized salt is used to prevent a human condition known as - ANSWERSgroiter

, Periodontitis is an inflammatory condition of the - ANSWERSgum tissue that surrounds the neck of each
tooth



The process of nuclear cell division in the cell reproduction of plants differs from mammals. A major
difference is that - ANSWERShomologous chromosomes are paired



Unicellular organisms that have a nucleus and can swim with the aid of cilia are examples of -
ANSWERSprotozoans



Which of these conditions is associated with smoking? - ANSWERSEmphysema



Which of these hydrocarbons is a member of the benzene family? - ANSWERSToluene



Which of these organisms use nitrogen directly from the air? - ANSWERSBlue-green algae



Which of these pairs of units measures the same quantity? - ANSWERSCalorie and Joule



Which of these particles can only be found in the nucleus of an atom? - ANSWERSprotons and neutrons



Which of these quantities is a vector of quantity - ANSWERSForce



Which of these quantities is most closely associated with an object's inertia? - ANSWERSMass



Which of these temperatures is known as Absolute Zero? - ANSWERS0°K



Which part of the cell structure controls the passage of materials into and out of the cell? -
ANSWERSPlasma membrane



While working in the chemistry laboratory, a student spills dilute hydrochloric acid on her hand. What is
the first action this student should take? - ANSWERSFlush her hand with large quantities of water

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