1.5 What Is Everything Made Out Of?

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| By Harry Brielmann
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Harry Brielmann
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Quizzes Created: 13 | Total Attempts: 6,238
| Attempts: 230 | Questions: 15
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1. How many bonds does oxygen typically form?

Explanation

Oxygen typically forms 2 bonds. The mnemonic "HONC if you love chemistry" may help you remember the number of bonds for each of the four most common elements of life: H1, O2, N3, and C4.

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1.5 What Is Everything Made Out Of? - Quiz

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2. How many bonds does carbon typically form?

Explanation

Carbon typically forms 4 bonds. The mnemonic "HONC if you love chemistry" may help you remember the number of bonds for each of the four most common elements of life: H1, O2, N3, and C4.

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3. Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '. is the _____ formula for water.

Explanation

Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '. is the molecular formula for water. Note that it does not show how the atoms are arranged in space- for that you need the structural formula.
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4. How many bonds does hydrogen typically form?

Explanation

Hydrogen typically forms 1 bond. The mnemonic "HONC if you love chemistry" may help you remember the number of bonds for each of the four most common elements of life: H1, O2, N3, and C4.

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5. Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '.

Explanation

Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '.is the molecular formula for ethanol. This means that a molecule for ethanol has two carbon atoms, six hydrogen atoms, and one oxygen atom. However, it does not tell us how those molecules are collected- for that we need a structural formula. It does tell us that those nine atoms are bonded together to form a single substance. 
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6. How many bonds does nitrogen typically form?

Explanation

Nitrogen typically forms 3 bonds. The mnemonic "HONC if you love chemistry" may help you remember the number of bonds for each of the four most common elements of life: H1, O2, N3, and C4.

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7. What is the structural formula of water? Please choose the closest answer

Explanation

Water has a molecular formula of Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '.. Since hydrogen forms a single bond, and oxygen prefers to form two bonds, the most reasonable structural formula is H-O-H. Note that this shows each hydrogen atom with one bond, and oxygen with two bonds.

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8. Magnesium hydroxide, present in milk of magnesia, has a molecular formula of Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '., therefore each molecule of magnesium hydroxide contains ____ oxygen atoms

Explanation

The molecular formula Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '. tells us that there are two OH groups (known as hydroxide ions) attached to magnesium; in other words magnesium hydroxide has a structural formula of H-O-Mg-O-H. Therefore each mulecule contains two oxygen atoms.

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9. Substance A has a molecular formula of Syntax error from line 1 column 55 to line 1 column 96. Unexpected '<mi '. and substance B has a molecular formula of Syntax error from line 1 column 55 to line 1 column 96. Unexpected '<mi '.What is the relationship between substance A and substance B?

Explanation

Substances A and B cannot be isomers because they have different molecular formulas. Isomers have the same molecular formulas but different arrangements of the atoms.

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10. What is the relationship between the two substances shown below? 

Explanation

The two molecules are isomers: they have the same molecular formulas (

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11. H-O-H is an example of a ________ formula

Explanation

H-O-H is the structural formula for water. Note that it provides the bonding arrangement for the molecular formula for water (Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '.)

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12. Which of the following is true about Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '.

Explanation

This is a molecular formula since the bonds are not explicitly shown. It is an organic substance since it contains carbon. Note that in this particular case there is only one isomer possible. Often a molecular formula can be the basis for multiple isomers, but in this case it can only be assembled one way while mainitaining four bonds for carbon, two for oxygen, and one for each hydrogen: Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '.

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13. What is the relationship between the two substances shown below?

Explanation

The two substances are isomers since they both have a molecular formula of Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '. but the the structural formulas are different- not how the "OH" group (known as a hydroxyl group) is on the end of one, and in the center on the other isomer.

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14. What is wrong with the substance Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '.

Explanation

The substance Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '. is unlikely to exist since carbon can only form four bonds; CH4 is a common substance known as methane. There are no isomers for CH5 since it does not exist.

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15. Which of the following substances are organic?a. NaCl, commonly known as table saltb. Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '., commonly known as methanec. Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '., commonly known as sulfuric acidd. Au, commonly known as golde. Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '., which may be ethanol or dimethyl ether, depending on the isomer

Explanation

Substances B and E are organic since they contain carbon.
Either isomer for E is organic since both contain carbon.
This question is using the scientific meaning of the term organic. Farmers and vegans may have a different definition of the term "organic".

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How many bonds does oxygen typically form?
How many bonds does carbon typically form?
 is the _____ formula for water.
How many bonds does hydrogen typically form?
How many bonds does nitrogen typically form?
What is the structural formula of water? Please choose the closest...
Magnesium hydroxide, present in milk of magnesia, has a molecular...
Substance A has a molecular formula of  and substance B has a...
What is the relationship between the two substances shown below? 
H-O-H is an example of a ________ formula
Which of the following is true about 
What is the relationship between the two substances shown below?
What is wrong with the substance 
Which of the following substances are organic?a. NaCl, commonly known...
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