Final review questions
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Is burning paper a chemical or physical change? | show 🗑
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| show | physical
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| show | physical
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| show | mixture
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| Is table salt (NaCl) a substance or mixture? | show 🗑
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| show | substance
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| Is gasoline a homogeneous mixture or heterogeneous mixture? | show 🗑
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| show | heterogeneous
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| show | True
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| (T/F) all samples of pure copper (Cu) will have the same density, regardless of size. | show 🗑
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| (T/F) According to MODERN atomic structure theory, ALL carbon atoms are identical | show 🗑
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| (T/F) Electrons have the same mass as protons and neutrons. | show 🗑
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| (T/F) Gases can be compressed (have their volume changed) because the particles are NOT packed closed together. | show 🗑
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| (T/F) Electrons are found in the nucleus of the atom. | show 🗑
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| show | True
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| show | True
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| show | False
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| Is Br a metal, metalloid, or nonmetal? | show 🗑
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| show | metal
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| Is C a metal, metalloid, or nonmetal? | show 🗑
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| show | metalloid (semi-metal)
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| Is Na a noble gas, halogen, or alkali metal? | show 🗑
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| Is a F a noble gas, halogen, or alkali metal? | show 🗑
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| Is Ne a noble gas, halogen, or alkali metal? | show 🗑
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| show | N
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| show | K
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| show | P
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| show | Ni
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| show | I
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| show | Fe
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| What's the element symbol for sulfur? | show 🗑
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| show | Na
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| What's the element symbol for silicon? | show 🗑
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| show | True
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| show | True
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| show | False
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| show | True
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| (T/F) According to the octet rule, when Ca forms an ion, it will be Ca 2+ | show 🗑
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| show | False
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| show | False
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| show | Ether
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| What chemical substance is the organic molecule that often have a sour taste? | show 🗑
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| What chemical substance is the organic molecule that is found in drinks such as beer, wine, or hard liquor? | show 🗑
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| What chemical substance is the organic molecule that often smell badly like decaying fish and flesh? | show 🗑
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| What chemical substance is the organic molecule that is commonly used in food flavoring and perfumes? | show 🗑
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| What chemical substance is an illegal stimulant that can uncommonly be used to treat ADHD, obesity, and narcolepsy? | show 🗑
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| What chemical substance is an anticancer drug that resembles substance essential to normal body functions | show 🗑
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| show | Ecstasy
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| show | morphine
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| What chemical substance is a mildly addictive stimulant found in some foods and beverages? | show 🗑
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| show | False
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| (T/F) Penicillin attacks bacteria by not allowing bacteria to properly form cell walls. | show 🗑
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| (T/F) Cocaine, caffeine, and nicotine are all in the same class of drugs: stimulants. | show 🗑
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| (T/F) The octane rating of gasoline refers to the amount of the organic substance octane that is present in the fuel. | show 🗑
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| show | False
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| (T/F) Toxic chemicals are added to ethanol not intended for human consumption (i.e. for use in lab) to prevent abuse and for taxation purposes. | show 🗑
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| (T/F) Heart disease was the leading cause of death in 1900. | show 🗑
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| (T/F) Bases are commonly found in foods because they have a sour taste. | show 🗑
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| (T/F) Vitamin C can cure the common cold. | show 🗑
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| show | True
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| show | False
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| show | True
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| (T/F) So far, there are no studies showing a direct link between cell phone usage and increased risk of forming brain tumors. | show 🗑
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| (T/F) When baking, baking powder and baking soda contain the same substance(s) and are completely interchangeable. | show 🗑
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| (T/F) Vitamin C is an important part of a healthy diet. | show 🗑
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| (T/F) The US is one of the top energy consumers in the world. | show 🗑
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| show | False
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
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