Test 7

Lithium, sodium, potassium, and cesium

Beryllium, magnesium, calcium, and barium

Helium, argon, krypton, and xenon

platinum, silver, and gold

Fluorine, chlorine, bromine and iodine

Boron, silicon, and germanium

Palladium, rhodium, and iridium

produced by direct iron reduction

the addition of hydrogen to double or triple bonds

an alloy of mercury with another metal

active ingredient in bleach

the process occurring in plants that continually replenish oxygen in the atmosphere

phosphoric acid

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

mineral compounds containing metals and silicon-oxygen groups

polymers of silicon, oxygen, and carbon

the process of converting atmospheric nitrogen to a form that can be used by plants

two or more forms of the same element that differ in their properties but exist in the same physical state

used to produce ammonia

used to produce aluminum metal

the most common ore of the element iron

another name for laughing gas

the group of elements that are found in nature only as free uncombined elements

the alkaline earth metal that is as essential component of bone and teeth

the process by which gold and silver are typically extracted from low-grade ores

two alloys of copper

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

is typically extracted from petroleum and natural gas using the Claus Process

Most helium is extracted from ____.

one of the most common compounds of the element boron

The hormone thyroxine, produced by the thyroid gland, contains ___.

the class of nonmetals that is the most reactive

the compound used to manufacture fertilizer

Deposits inside boilers, hot water heaters, and teapots are often caused by ____.

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

Epson salts is the hydrate of _______.

the nonmetal that exists in rhombic, monoclinic, and plastic forms depending on the temperature

Steel is an alloy of iron and a percentage of _____.

makes up beverage cans, spacecrafts, and aircrafts

the expensive metal widely used in automotive catalyst converters, spark plugs, and surgical tools

Milk of magnesia is a suspension of _____.

the third most abundant element in the earth's crust

lye and caustic soda

the important nutrients contained in commercial fertilizers

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

the element produced industrially by steam reforming of natural gas

commonly used as a semiconductor to make computer chips

a naturally produced noble gas that can diffuse into home basements and is associated with an increased risk in lung cancer

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

contains high concentrations of calcium, magnesium, and iron (II) ions

the cheapest and most widely used metal

the most malleable and ductile metal known

the primary component of window glass

a nonmetal that does not have multiple allotropes at room temperature

Malachite, cuprite, and chalcopyrite

the element that exists as an unstable white allotrope and a more stable red allotrope

used to make windows in x-ray tubes

a very dense metal used in industrial counterweights, high-density armor, and nuclear fuels

an allotrope of oxygen

the most reactive of all elements

the second most abundant element in the earth's crust

has the isotopes: protium, deuterium, and tritium

used in refrigerants and anti-cavity dental treatment

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

the most abundant element in the universe

used in ammonia, artificial fertilizers, and explosives

used in deep-sea diving mixtures and as a nonflammable lifting gas in airships and high-altitude ballons

the three ions of oxygen

the physical properties of metals

What is the best reason why sulfuric acid can be used to measure the health of the US's economy