Chapter 2 - The Chemical Context of Life

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Chemistry

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1

Biologists

________ study life, yet organisms and their environs are natural systems to which chemistry and physics ideas apply.

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2

Physicists

________ have created more than 100 types of particles from the atom via high- energy collisions, but only three types of particles are important here: neutrons, protons, and electrons.

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3

Table salt

________, for example, is sodium chloride (NaCl), a chemical formed in a 1: 1 ratio of the elements sodium (Na) and chlorine (Cl)

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4

academic classes

Nature, unlike ________, is not cleanly divided into distinct sciences- biology, chemistry, physics, and so on.

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5

Arsenic

________ occurs naturally in various parts of the world and can enter groundwater.

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6

Electrons

________ and protons are both electrically charged.

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7

formic acid

For many ant species, the ________ is presumably used as a disinfectant to protect the ants from microbial parasites rather than being fired out.

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8

Biology

________ is an interdisciplinary field.

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9

seafood

Consuming ________ or iodized salt lowers the risk of goiter.

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10

Wood ants

________ live in colonies of hundreds or thousands, and the colony as a whole possesses a very efficient defense mechanism.

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11

Protons

________ and neutrons are densely packed together in a compact core, or atomic nucleus, in the heart of an atom; ________ provide the nucleus with positivity.

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12

metal sodium

As the ________ interacts with the toxic gas chlorine to produce the edible compound sodium chloride or table salt, the emerging characteristics of the combination can be discovered.

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13

Elements

________ are the building blocks of matter.

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14

tiny pieces of matter

Although the atom is the smallest unit with elemental characteristics, these ________ are made up of even smaller components known as subatomic particles.

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15

element

A(n) ________ is a material that can not be broken down chemically into other compounds.

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16

Formic acid

________ is generated by numerous ant species and derives its name from the Latin word for ant, Formica.

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