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Quiz Midterm Exam Review 1

Ceiteagakactag
Ceiteagakactag
18 played - 11 yrs ago

Chemistry

 

Expert QUIZ 30 QUESTIONS
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Question 1 / 30

The mass of a mole of NaCl is the?

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Question 2 / 30

What is the molar mass of (NH4)2CO3?

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Question 3 / 30

The volume of one mole of a substance is 22. 4 L at STP for all ___.

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Question 4 / 30

What is the number of moles in 9. 63 L of H2S gas at STP?

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Question 5 / 30

What is the percent composition of chromium in BaCrO4?

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Question 6 / 30

The lowest whole-number ratio of the elements in a compound is called the ___.

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Question 7 / 30

A catalyst is ___.

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Question 8 / 30

Chemical equations must be balanced to satisfy ___.

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Question 9 / 30

Which of the following statements is NOT true about what happens in all chemical reactions?

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Question 10 / 30

What is the change in atomic number caused by the emission of gamma radiation?

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Question 11 / 30

If an isotope decays by the process of beta emission, ___.

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Question 12 / 30

Controlled nuclear chain reactions ___.

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Question 13 / 30

Which of the following statements is correct?

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Question 14 / 30

How many moles of silver atoms are in 1. 8x10^20 atoms of silver?

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Question 15 / 30

How many atoms are in 3. 5 moles of arsenic atoms?

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Question 16 / 30

A molecule with a single covalent bond is ___.

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Question 17 / 30

What is the shape of a molecule with a triple bond?

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Question 18 / 30

What is the correct names for the N^3- ion?

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Question 19 / 30

Which of the following is true about the composition of ionic compounds?

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Question 20 / 30

What type of compound is CuSO4?

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Question 21 / 30

What is the correct formula for a calcium dihydrogen phosphate?

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Question 22 / 30

Which of the following is NOT a representative particle?

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Question 23 / 30

Which combination of temp. and pressure correctly describes standard temp. and pressure, STP?

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Question 24 / 30

Which of the following gas samples would have the largest number of representative particles at STP?

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Question 25 / 30

Symbols used in equations, together with the explanations of the symbols, are shown below. Which set is correct?

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Question 26 / 30

Of the following elements, which one has the smallest first ionization energy?

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Question 27 / 30

How does calcium obey the octet rule when reacting to form compounds?

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Question 28 / 30

Which is a typical characteristic of an ionic compound?

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Question 29 / 30

Which noble gas has the same electron configuration as the oxygen in a water molecule?

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Question 30 / 30

What is the approximate frequency of a photon having an energy 5x10^-24 J?

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