Chemical properties include melting, freezing, evaporation, density, and color.

An element is composed of only one atom.

A substance has two or more types of atoms.

A chemical formula tells you the number and type of atoms in a substance.

Scientists use models to help visualize the unseen particles and phenomenon which can be directly observed.

Match the condition to the concept:

As a shoe wears out, a hole appears.

Match the condition to the concept:

Propane gas burns very hot.

Match the condition to the concept:

The chemical formula Mg is a ______

Match the condition to the concept:

Copper has a reddish brown color.

Match the condition to the concept:

When a candle is lit, it burns, and goes out.

Match the condition to the concept:

The chemical formula HCI is a ______

Count the atoms in the substance:

NaOH - Sodium Hydroxide - a base

Count the atoms in the substance:

Be-Beyllium

Count the atoms in the substance:

HCI-Hydrochloric Acid

Match the property of elements to the category:

Shiny in appearance

Match the property of elements to the category:

Not malleable or ductile

Match the property of elements to the category:

Malleable but NOT ductile

An atom is composed of smaller particles (grupons, photons, and feeblons).

The Atomic Number distinguishes one atom from another.

Isotopes of an atom have a variable number of neutrons.

Elements with similar properties are aligned in HORIZONTAL rows called periods.

Ionic compounds are composed of positively and negatively charged particles.

Metals react in predictable patterns based on their position in the periodic table.

Match the isotope to its specific number of neutrons:

Mg-24, an isotope of magnesium has ___ neutrons

Match the isotope to its specific number of neutrons:

Mg-25, an isotope of magnesium has ___ neutrons

Match the isotope to its specific number of neutrons:

Mg-26, an isotope of magnesium has ___ neutrons

Classify each as an electrically neutral atom, an anion, or a cation:

Ag1+

Classify each as an electrically neutral atom, an anion, or a cation:

O2-

Classify each as an electrically neutral atom, an anion, or a cation:

Li

Resources are obtained from the atmosphere, hydrosphere, and the lithosphere (crust).

A mineral is easier to extract metals than an ore.

Teh chemical reactivity of an ore is higher than a mineral.

The molar mass is the sum of all masses of the particles found in ANY substance.

The percent composition of a substance can be calculated from the relative number of atoms of each element in the substance's formula.

Metal cations can be converted to metal atoms by Electro metallurgy, Pyro metallurgy, or Hydro metallurgy, depending upon the metal's reactivity.

Samples of 63.6 g copper metal and 23.0 g sodium metal, with different masses, volumes, and densities, both correctly represent 1.00 mole (use Periodic Table).

What are some typical resources are found in each of the 'spheres'?

Coal and oil

What are some typical resources are found in each of the 'spheres'?

Nitrogen Gas, Oxygen gas, Helium

What are some typical resources are found in each of the 'spheres'?

Water and Salt

Identify the following equation as representing either an oxidation reaction or reduction reaction reaction:

Fe2 + 2e- --> Fe

Identify the following equation as representing either an oxidation reaction or reduction reaction reaction:

Cr --> Cr3+ + 3e-

A chemical equation represents the reaction of one or more substances to form one or more new substances.

The atoms that compose matter can be either created nor destroyed in a chemical reaction.

Coefficients in a chemical equation indicate the relative number of units og each reactant and product involved.

Subscripts in a substance formula may be changed to balance an equation.

An alloy posses properties that differ, sometimes significantly, from the properties of its constituent elements.

Resources are either renewable or nonrenewable.

Resources can be conserved be recycling, reducing (controlling rate of use), or replacing them with substitute resources.

Complete atom inventories to decide whether each of the following equations is balanced:

The preparation of tin (II) fluoride, a component of some toothpastes (called stannous fluoride in some ingredient lists):

Sn(s) + HF(aq) --->SnF2(aq) + H2(g)

Complete atom inventories to decide whether each of the following equations is balanced:

The synthesis of carborundum for sandpaper:

SiO2(s) + C(s) ---> SiC (s) + CO(g)

Match the substance fo the coefficient:

Consider this equation:

N2(g) + 3H2(g) ---> 2NH3(g)

What is the coefficient for the nitrogen gas?

Match the substance fo the coefficient:

Consider this equation:

N2(g) + 3H2(g) ---> 2NH3(g)

What is the coefficient for hydrogen gas?

Match the substance fo the coefficient:

Consider this equation:

N2(g) + 3H2(g) ---> 2NH3(g)

What is the coefficient for NH3 gas?

Balance the equation:

__PbS + __O2 ---> __PbO + __SOs

PbS

Balance the equation:

__PbS + __O2 ---> __PbO + __SOs

O2

What are the main component(s) of sustainability?

Petroleum (crude oil) a nonrenewable resource that must be refined prior to use

Petroleum consists of a simple mixture of hydrocarbon molucules

Petroleum is a source of fuels that provide thermal energy

Petroleum is also a source of raw materials for the manufacture of many familiar and useful products

Liquid substances can often be separated according to their different boiling points in a process called fractalization

Fractional distillation of crude oil produces several distinctive and useable mixtures, containing molecules of:

Alkane molecules, hydrocarbons linked by single covalent bonds

The largest consumer of Petroleum in the USA is

Monomers are created by cross-linking polymers

The atoms in hydrocarbons are held together by metallic bonds

Ring compounds include cycloalkanes and aromatic compounds

Polymers link together to form monomers

Molecules can be represented by Lewis dot structures and structural formulas

Some polymers can be synthesized by combining monomers in an addition reaction

Few everyday objects are constructed from petroleum-based polymers.

Examples of functional groups are:

The molecular structure of polymers can be designed or altered to produce materials with desired:

Chemical energy, a form of potential energy, is stored within chemicals compounds

Free energy does not change in a chemical reaction

Reactions are classsified as either exothermic or endothermic.

Energy is required to break a chemical bond

When a hydrocarbon burns completely, it reacts with oxygen gas from the air

When a hydrocarbon burns completely, it reacts with oxygen gas from the air to

The carbon and water cycles help explain movement of matter of Earth.

Scientific evidence indicates the Earth's climate is NOT affected by human activities.

What are the benefits of burning hydrocarbons?

What are the consequences of burning hydrocarbons?

It is claimed that replacing one conventionallight bulb with a compact fluorescent light bulb can save a lot of CO2 emissions. Which if any answer supports the claim?