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65 Cards in this Set

  • Front
  • Back

A chemical can be defined as

Any substance that had a definite composition

inorganic chemistry is the study of

Non-carbon related compounds

Biochemistry is the study of

The chemistry of living things

Organic chemistry is the study of

Carbon-containing compounds

Basic research is usually performed

To gain knowledge

Which is an intensive property of matter? Amount of energy, density, volume, or mass?

Density

A measure of the quantity of matter is

Mass

A true statement about mass is that

Mass is determined by comparing the mass of an object with a set of standard masses that are part of a balance

An example of a chemical change occurring is

A leaf changing colors in the fall

A homogenous mixture is also called

A solution

A scientist is working to determine the properties and chants of matter and their relation to energy of a newly discovered mineral. She is working in the field of

Physical chemistry

Two scientists are trying to determine the exact nature of the chemicals in lava flow. They are working in the field of

Analytical chemistry

In a bonfire, oxygen allows wood to combust, leaving behind ashes. In this process, oxygen and wood are the reactants, and ashes are the

Product

A scientist is working to develop better dating methods for substances that contain carbon. He is working in the feild of

Organic chemistry

A scientist is using mathematical models to isolate a new chemical process. He is working in the field of

Analytical chemistry

Basic research is performed to increase

Knowledge

applied research is often preformed to find the answer to a particular

Problem

When examining a mineral, hardness and color are two of the properties used for identification. They are examples of

Physical properties

An Apple turning brown after being cut its am example of a

Chemical change

The melting of butter is what, and why?

It is a physical change because our does not produce any new substances

A sample of matter can be poured from container to container. It takes the shape of the container, but only takes up a certain volume. Based on this information, the sample is a in the

Liquid state

An alloy, such as a a good ring, is an example of a

Homogenous mixture

Gravel is an example of a

Heterogeneous mixture

Standard of measurement are chosen because they

Are reproducible in another laboratory

Is the statement "a standard can be easily changed to suit the experiment" trite our false?

False

Which one is NOT an SI base unit? Kilogram, second, liter, or Kelvin?

A liter

The SI base units for length and time are

Meter and second

The symbols for units of length in order from largest to smallest are

Km, m, cm, mm

The SI unit for length is

The meter

Which is NOT an SI unit for density? Kg/m3, kg/L, g/cm3, or g/m2?

g/m2

Is the statement "The mass of Ann object is determined by comparing it to an object of known mass" true or false?

It is true

When density is measured

The temperature should be specified

Is the statement "density is a physical property" true or false?

It is true

100 mL (milliliter) is equal to

1 deciliter

0.25 g is equivalent to

250 mg

1.06 L of water is equivalent to

1,060 mL

A chemist obtained the values 5.2246 g, 5.2353 g, and 5.2501 g for the mass of a sample. It can be said that these values have

Poor precision

The graphs of two variables that are inversely proportional to one another are

A hyperbola

Visible light, x- rays, infrared radiation, and radio waves all have the same

Speed

Which model of the atom explains the orbitals of electrons as waves?

The quantum model

The size and shape of Ann electron cloud are most closely related to the electron's

Energy

Both the Heisenberg uncertainty principle and the Schrödinger wave equation

Led to the concept of atomic orbitals

An orbital that can never exist according to the quantum description of the atom is

3f orbital

Moseley's work led to the realization that statement with similar properties occurred at regular intervals when the elements were arranged in order of increasing

Atomic number

Hydrogen is placed separately from other elements in the periodic table because it

Has many unique properties

The group of soft, silvery, reactive metals, all of which have one electron in an s orbital, is known as the

Alkali metals

The first member of the noble gas family, whose highest energy level consists of an octet of electrons, is

Neon

When an electron is added to a neutral atom, a certain amount of energy is

Either released our absorbed, or always released

A measure of the ability of an atom in a chemical compounds to attract electrons from another atom in the compound is called

Elextrpnegativity

A positive ion is known as a

Cation

The alkaline earth group, the atoms with the snakes radii

Have the highest ionization energies

Across a period, innovation entries of d- block elements generally

Increase

If two covalently bonded atoms are identical, the bond is

Nonpolar covalent

in the three molecules O2, HCl, and F2, what atom would have a partial negative charge?

Chlorine

Bonding in molecules or ions that cannot becorrectly represented by a single Lewis structure is

Resonance

The chemical formula fire an ionic compound represents the

Ratio of the combined ions present in a sample

The lattice energy is the measure of the

Strength of an ionic bond

If the lattice energy of compound A is greater than that of compound B,

The bonds in A are stronger than those in B

Compared with ionic compounds, molecular compounds

Have lower melting points

The forces of attraction between molecules in a molecular compound are

Weaker than the forces among formula units in ionic bonding

A chemical bond formed by the attraction between positive ions and surrounding mobile electrons is a

Metallic bond

As light strikes the surface of a metal, the electrons in the electron sea

Absorb and re- emit the light

The chemical bond of metals and ionic crystals explains

Why metals are malleable and why ionic crystals are brittle

Compared with molecular bonds, end strength of force is

Weaker

The equal but opposite charges present in the two regions odd a polar molecule create a

Dipole