NLN PAX science EXAM A+ GRADE ASSURED COMPLETE SOLUTIONS AND VERIFIED ANSWERS

EXAM

Exam Solution
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NLN PAX EXAM SCIENCE Cartes 2026 A+ GRADE ASSUR
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ED COMPLETE SOLUTIONS AND VERIFIED ANSWERS (1
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4D46)




QUESTION 1 ms




E= mc^2
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ANSWER

Energy (e)= mass(m) x speed of light (
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c) -basis is the law of conservation of mass and energy
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QUESTION 2 ms




significant figures (sig figs) ms ms ms




ANSWER

all the digits that are known in a measurement, plus the last digit that is estimated
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QUESTION 3 ms




Kelvin scale ms




ANSWER

theoretical temperature that is the lowest called absolute zero
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QUESTION 4 ms




absolute zero ms




ANSWER

The temperature at which no more energy can be removed from matter
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,QUESTION 5 ms




What is absolute zero on the Celsius scale?
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ANSWER

-273.150 degrees C ms ms




QUESTION 6 ms




When making use of the system of scientific notation in expressing large numbers, yo
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u need to. . .
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ANSWER

shift the decimal point until you have just 2 digits on the left and then show the number of decimal
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points moves as the exponent of 10
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QUESTION 7 ms




precision
ANSWER

a measure of how close a series of measurements are to one another; indication of the realism or p
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ossibility of a given measurement
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QUESTION 8 ms




accuracy
ANSWER

gives an indication of the proximity of a measurement to its known or accepted value
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QUESTION 9 ms




Law of Conservation of Energy
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ANSWER

Energy cannot be created or destroyed but can only be changed from one form to another
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QUESTION 10 ms




anabolism
ANSWER

Constructive metabolism; the process of building up larger molecules from smaller ones.
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, QUESTION 11 ms




Catabolism
ANSWER

Metabolic pathways that break down molecules, releasing energy.
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QUESTION 12 ms




What is most abundant element in Earth's crust?
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ANSWER

Oxygen



QUESTION 13 ms




law of definite proportions
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ANSWER

the elements that make up a single chemical compound have weight proportions that are fixed and
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constant



QUESTION 14 ms




Pauli Exclusion Principle
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ANSWER

in any particular molecule, two electrons CANNOT have a different four-quantum-number set
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QUESTION 15 ms




Atomic theory ms




ANSWER

a theory that states that all matter is composed of tiny particles called atoms.
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QUESTION 16 ms




An element's atoms. . .
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ANSWER

are similar in weight, and the weight depends on the type of atom
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