Test 7

Question 1

polymers of silicon, oxygen, and carbon are called____?

Answer 1

Silicones

Question 2

Mineral compounds containing metals and silicon-oxygen groups are called ____?

Answer 2

Silicates

Question 3

Milk of magnesium, a suspension of _____, is used as a stomach antacid and laxative.

Answer 3

Magnesium hydroxide

Question 4

Epsom salt, the hydrate of _____, is used in hot baths to reduce swelling.

Answer 4

Magnesium sulfate

Question 5

An expensive metal widely used in automotive catalytic converters, spark plugs, and surgical tools is ____?

Answer 5

Platinum

Question 6

The nonmetal that exist in rhombic, monoclinic, and plastic forms depending on the temperature is _____?

Answer 6

Sulfur

Question 7

A lightweight metal extracted from bauxite and widely used in aircraft, spacecraft, and beverage cans is _____?

Answer 7

Aluminum

Question 8

Most of the element _____ produced annually is used for acid production.

Answer 8

Sulfur

Question 9

Steel is an alloy of iron and a small percentage of _____?

Answer 9

Carbon

Question 10

Gold and silver are typically extracted from low-grade ores using the _____?

Answer 10

Cyanide process

Question 11

Laughing gas, a compound used as an anesthetic in minor dental surgery, is _____?

Answer 11

Nitrous oxide

Question 12

What element is typically extracted from petroleum and natural gas using the Claus process?

Answer 12

Sulfur

Question 13

Brass and bronze are alloys of what?

Answer 13

Copper

Question 14

What is the process by which certain microorganisms convert atmospheric nitrogen to a form that can be used by plants?

Answer 14

Nitrogen fixation

Question 15

The blast furnace is used to extract _____ from its ore.

Answer 15

Iron

Question 16

The hormone thyroxine, produced by the thyroid gland, contains ____?

Answer 16

Iodine

Question 17

What is most helium extracted from?

Answer 17

Natural gas

Question 18

What group of elements are found in nature only as free, uncombined elements?

Answer 18

Nobel gases

Question 19

What is the third most abundant element in the earths crust?

Answer 19

Aluminum

Question 20

Which class of non metals is the most reactive?

Answer 20

Halogens

Question 21

What compound used in fertilizer manufacturing is produced by the haber process?

Answer 21

Ammonium

Question 22

What alkaline earth metal is an essential component of bone and teeth?

Answer 22

Calcium

Question 23

Includes fluorine, chlorine, bromine, and iodine

Answer 23

Halogens

Question 24

Includes platinum, silver, and gold

Answer 24

Precious metals

Question 25

Includes boron, silicon, and germanium

Answer 25

Semimetals

Question 26

Includes helium, argon, krypton, and xenon

Answer 26

Noble gases

Question 27

Includes beryllium, magnesium, calcium, and barium

Answer 27

Alkaline earth metals

Question 28

Includes palladium, rhodium, iridium, and osmium

Answer 28

Platinum-group metals

Question 29

Includes lithium, sodium, potassium, and cesium

Answer 29

Alkali metals

Question 30

Hematite is the most common ore what element

Answer 30

Iron

Question 31

Borax is one of the most common compounds of what element?

Answer 31

Boron

Question 32

What is the Hall-Héroult process used to produce?

Answer 32

Aluminum

Question 33

Two or more forms of the same element that differ in their properties but exist in the same physical state are called____?

Answer 33

Allotropes

Question 34

Lee and caustic soda are common names for _____?

Answer 34

Sodium hydroxide

Question 35

Water containing high concentrations of calcium, magnesium, and iron(||) ions is called _____?

Answer 35

Hard

Question 36

Malachite, cuprite, and chalcopyrite are ores of ____?

Answer 36

Copper

Question 37

Ozone is an allotrope of the element _____?

Answer 37

Oxygen

Question 38

What naturally produced noble gas cam diffuse into home basements and is associated with an increased risk of cancer?

Answer 38

Radon

Question 39

What is the most reactive of all elements?

Answer 39

Fluorine

Question 40

What element is produced industrially by steam reforming of natural gas?

Answer 40

Hydrogen

Question 41

What semiconductor is most commonly used to make computer chips?

Answer 41

Silicon

Question 42

What compound is used as a contrast agent for x-rays of the gastrointestinal tract?

Answer 42

Barium sulfate

Question 43

What dense metal is used in car batteries, weights, radiation shielding, and small-arms ammunition?

Answer 43

Lead

Question 44

What is the cheapest and most widely used metal?

Answer 44

Iron

Question 45

What metal is used to make the windows in X-ray tubes?

Answer 45

Beryllium

Question 46

What is the primary component of window glass?

Answer 46

Silicates

Question 47

What very dense metal is used in industrial counterweights, high-density armor, and nuclear fuels?

Answer 47

Uranium

Question 48

What is the most malleable and ductile metal known?

Answer 48

Gold

Question 49

What element exist as an unstable white allotrope and a more stable red allotrope?

Answer 49

Phosphorus

Question 50

What is an alloy of mercury combined with another metal?

Answer 50

Amalgam

Question 51

What is the form of iron produced by direct iron reduction?

Answer 51

Sponge iron

Question 52

What is the active anion ingredient in bleach?

Answer 52

Hypochlorite

Question 53

What are salts of phosphoric acid called?

Answer 53

Phosphates

Question 54

What is the science of extracting metals from their naturally occurring materials and preparing them for use?

Answer 54

Metallurgy

Question 55

What is the addition of hydrogen to double or triple bonds known as?

Answer 55

Hydrogenation

Question 56

What is the process occurring in plants that continually replenishes oxygen in the atmosphere?

Answer 56

Photosynthesis

Question 57

The second most abundant element in the earths crust

Answer 57

Silicon

Question 58

Used in refrigerants and as an anti cavity dental treatment

Answer 58

Fluorine

Question 59

Used in bleaches, PVC plastic, medicines, pesticides, and water treatment

Answer 59

Chlorine

Question 60

Used in deep-sea diving mixtures and as a nonflammable lifting gas in airships and high-altitude balloons

Answer 60

Helium

Question 61

Used in ammonia, artificial fertilizers, and explosive compounds

Answer 61

Nitrogen

Question 62

The most abundant element in the universe

Answer 62

Hydrogen

Question 63

Isotopes are protium, deuterium, and tritium

Answer 63

Hydrogen

Question 64

What is the most important commercial method of preparing hydrogen in the United States?

Answer 64

Steam reforming

Question 65

What’s the addition of hydrogen to double or triple bonds?

Answer 65

Hydrogenation