Chemistry - ANSWERSIs the science that deals with the composition, structure, and
properties of matter and how matter and how matter changes under different conditions.
There are two branches of chemistry . - ANSWERSOrganic and Inorganic.
Organic Chemistry - ANSWERSIs the study of substances that contain the element
carbon
All living things, weather they are plants or animals, contain. - ANSWERSCarbon
Gasoline, plastics, synthetic fabrics, pesticides, and fertilizers are all -
ANSWERSOrganic substances, these products are manufacturing from natural gas and
oil, which are the remains of plants and animals thats died millions of years ago.
Organic Compounds - ANSWERSAre flammable and will burn.
Inorganic Chemistry - ANSWERSIs the branch of chemistry dealing with compounds
that do not contain the element carbon, but many contain the element hydrogen.
Inorganic substances - ANSWERSAre not flammable and will not burn because they do
not contain carbon.
Inorganic substances - ANSWERSAre not and never were, alive.
Metals, minerals, glass, pure water, and air are examples of - ANSWERSInorganic
substances
Matter - ANSWERSIs any substance that occupies space and has mass (weight)
All matter has physical and chemical properties and exists in the form of -
ANSWERSSolid, liquid, or gas
Matter is made from chemicals, everything is made out of matter is a -
ANSWERSChemical
Matter has some physical properties - ANSWERSWe can touch, taste, smell, or see,
but not everything we can see is matter.
An element - ANSWERSIs the simplest form of chemical matter. it cannot be broken
down into simpler substance without a loss identity.
There are about - ANSWERS90 naturally occurring elements
, Atoms - ANSWERSare the particles from which all matter is composed. An atom is the
smallest particle of an element that still retains the properties of that element.
Atoms - ANSWERSCannot be divided into simple substances by ordinary chemical
means.
Atoms consist of the smallest particles - ANSWERSProtons, which have positive
electrical,charge neutrons , with a neutral charge , and electrons with a negative charge.
The number of protons in an atom - ANSWERSEquals to the number of electrons.
A molecule - ANSWERSIs formed by joining two or more atoms chemically
Water is made from - ANSWERSHydrogen atoms and oxygen atoms
Carbon dioxide is made from - ANSWERSCarbon atoms and oxygen atoms
There are two types of molecules - ANSWERSElemental molecules and Compound
molecules.
Elemental molecules - ANSWERSContain two or more atoms of the same element that
are united chemically
Element O2 - ANSWERSAtmospheric oxygen, in the air we breathe,
Element molecule O3 - ANSWERSAtmosphere, ozone that protect us from the
ultraviolet radiation is
Compound molecules - ANSWERSAlso Known as compounds are chemical
combination of two or more atoms of different elements that are united chemically.
An example of compounds molecules - ANSWERSWould be sodium chloride (Na
CI)which is common table salt, its chemical compound that contains one atom of the
element sodium (Na) and one atom of the element chloride (CI)
States of Matter. - ANSWERSAl matter exist in one of three different physical forms:
SOLID, LIQUID, and GAS. The difference in in these physical forms depends on
temperature.
Water H2O - ANSWERSExists in all three states of matter, depending on its
temperature. Ice turn into water as it melts, water turns into steam as it boils.
Its is the same chemical in different physical form . this is called PHYSICAL CHANGE.
Water boiling point is - ANSWERS212F, 100C