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HiSET® High School Equivalency Test

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Results

Date: 19th Aug 2026Time Taken: 00:00:31

Mathematics

Answers Result

What is the correct ground-state electron configuration for a neutral oxygen atom (atomic number 8)?

Incorrect

A.1s 2 2s 1 2p 5
B.1s 2 2s 2 2p 4
C.1s 2 2s 2 3s 2
D.2s 2 2p 6

A coffee roaster has 7.56 kilograms of beans. He wants to pack the beans into small bags that each hold 0.06 kilograms. How many full bags can he make?

Correct

A.126
B.0.126
C.1.26
D.12.6

Zaatar originates from the Middle East and is a unique mix of herbs and spices including thyme, sesame, and sumac. Revered for its distinctive flavor and aroma, it has found a place in kitchens worldwide. The versatility of zaatar makes it a popular choice for seasoning meats, topping flatbreads, or even mixing with olive oil as a dip. Though recipes vary from region to region, the common components remain the same. Embracing its adaptability, many chefs tailor zaatar to suit their individual tastes, making it a personal favorite. Read the excerpt and answer the question. What is the author’s main purpose in this excerpt?

Incorrect

A.To compare zaatar with other Middle Eastern spice blends
B.To give a general overview of what zaatar is and how it is commonly used
C.To teach readers specific techniques for cooking with zaatar in several dishes
D.To give step-by-step instructions for making zaatar at home

Answers Result

What is the correct ground-state electron configuration for a neutral oxygen atom (atomic number 8)?

Incorrect

A.1s 2 2s 1 2p 5
B.1s 2 2s 2 2p 4
C.1s 2 2s 2 3s 2
D.2s 2 2p 6

A neutral oxygen atom has 8 electrons (equal to its atomic number). Electrons fill orbitals in order of increasing energy: 1s, then 2s, then 2p. The configuration 1s 2 2s 2 2p 4 accounts for all 8 electrons: 2 + 2 + 4 = 8. The choice with 2s 1 2p 5 incorrectly places one electron in 2p before fully filling 2s in the ground state. The choice including 3s 2 promotes electrons to a higher energy level too early (oxygen does not reach 3s). The choice starting at 2s omits the filled 1s core and also totals 8 electrons in the second shell, which corresponds to a different element.

A coffee roaster has 7.56 kilograms of beans. He wants to pack the beans into small bags that each hold 0.06 kilograms. How many full bags can he make?

Correct

A.126
B.0.126
C.1.26
D.12.6

Why 126 is correct Divide the total weight by the weight per bag: 7.56 ÷ 0.06. Move the decimal in both numbers two places to the right (multiply each by 100) to get an easier problem: 756 ÷ 6. 756 ÷ 6 = 126. So 126 full bags are possible. Why the other choices are wrong 12.6 – moved the decimal only one place in each number, so the division was 75.6 ÷ 6. 1.26 – moved the decimal differently in each number, giving 7.56 ÷ 6. 0.126 – moved the decimal the wrong direction, making the numbers smaller instead of larger.

Incorrect

A.To compare zaatar with other Middle Eastern spice blends
B.To give a general overview of what zaatar is and how it is commonly used
C.To teach readers specific techniques for cooking with zaatar in several dishes
D.To give step-by-step instructions for making zaatar at home

Understand why,
not only what.

HiSET questions test how you apply knowledge in real situations. After every answer, you are provided with a clear rationale so you can understand the reasoning, learn from mistakes, and recognize it when it appears again.

Question 1 of 3

What is the correct ground-state electron configuration for a neutral oxygen atom (atomic number 8)?

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Every subject area, covered

Understand why,not only what.

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Take it in your pocket

Every answer shapes what you study next.

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Understand

Focus

Improve

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Understand why,
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