FiltersDone

Question type

Essay

Multiple Choice

Short Answer

True False

Matching

Exam 21: Periodic Trends and the S-Block Elements

Show Answer

Share

---

All types

Filters

Study Flashcards

Question 31

Multiple Choice

Review LaterAdd Note

Review Later

Which of the following is a macromineral?

A) Iron
B) Lead
C) Calcium
D) Sulfur
E) Nickel

F) A) and E)
G) All of the above

Correct Answer

verified

Show Answer

Question 32

Multiple Choice

Review LaterAdd Note

Review Later

Which of the following ions contains a three center bond?

A) NH₄⁺
B) H₃O⁺
C) HSO₄^-
D) HCO₃
E) B₂H₇^-

F) C) and D)
G) A) and E)

Correct Answer

verified

Show Answer

Question 33

Multiple Choice

Review LaterAdd Note

Which alkaline earth metal does not react readily with nitrogen to form a nitride?

When heated, all alkaline earth metals, except for _____, react directly with carbon to form ionic carbides with the general formula MC2.

Of the carbonates formed from alkaline earth metals, _____ is a major component of cement and an ingredient in many commercial antacids.

Compounds that contain a metal covalently bonded to a carbon atom of an organic species are called_____.

During photosynthesis, _____ is reduced to form sugars such as glucose.

Most of the elements in the periodic table form binary compounds with hydrogen, which are collectively referred to as _____.

Write a note on the covalent character of elements in period two. Give examples to illustrate this phenomenon.

Due to their small radii, second-period elements have electron affinities that are _____ negative than would be predicted from general periodic trends.

Covalent hydrides in which H is bonded to O, N, or S atoms are nonpolar and hydrophobic.

Which element from group 2 has the lowest density?

Which of the elements of group 13 will have the lowest bond strengths?

Which alkali metal reacts the slowest with water?

Magnesium ions in an aqueous environment contain octahedral complexes.

Lithium chloride is more soluble than sodium chloride in solvents with a relatively low dielectric constant.

Alkali metals insert themselves between the sheets of carbon atoms to give new substances called _____.

For patients who suffer from hypertension, low-sodium diets that use NaCl substitutes, such as_____, are often prescribed.

During the electrolysis of water, the gas evolved at the cathode is enriched in deuterium, while the remaining water is enriched in hydrogen.

When an active metal like zinc is treated with a dilute acid, hydrogen is produced.