A substance with a constant composition that can be broken down into elements by chemical process.

Which of the following affects most of the electrical and thermal properties of materials?

The ores from which aluminum is obtained is

What are the elements comprises vinegar?

Chemical symbol of Sodium Oxide

What is the first coordination number for a Body Centered Cubic (BCC) crystal structure?

Which is not a form of energy: a. heat b. light c. chemical d. electrical e. mechanical f. sound

Chemistry that deals with the analysis and identification of substances.

What is the chemical formula of Dinitrogen Pentoxide?

Chemistry which is concerned with the natural laws and principles governing both physical and chemical changes.

arrangement and distribution of the elementary particles within an atom.

The charge of aluminum atom in the aluminum foil is:

Base samples causes litmus to turn ____.

Which of the following materials is NOT a Viscoelastic material?

When a solid has a crystalline structure, the atoms arranged in repeating structures called:

The ores from which zinc is obtained is

The purpose of copper in steel alloying is to increase

Compared to gases and liquids, solids are less:

The statement that equal volumes of all gases under the same conditions of temperature and pressure contain very nearly the same number of molecules is known as ______

Stable and un reactive and are found in group VIIIA

It is the force which is pulled toward the center of the earth.

It is a change in matter that result in the disappearance of one or more substance and the formation of one or more new substances, each of which its own set of properties. Ex. Production of soap, digestion, burning of woods. Etc.

Type of energy change where energy is liberated.

Chemistry which is concerned with materials found in living organisms.

What group of steels are air-hardened, medium alloy tool steels?

Which of the following gases is classified as electronegative?

When an air entrainment agent is introduced into a concrete mix,

It is the ratio molecular weight of a polymer to the molecular weight of a single monomer:

A form matter which cannot be separated into two or more other forms matter except by means of a chemical change.

This law state that matter is neither created nor destroyed, ut just changes form one form to another. (Antonio Lavoisier)

The molecules of the same composition, what are variations of atomic arrangement know as

This law states that atoms combine in fixed ratios when they form compounds.

Carbon and Hydrogen containing only carbon single bond.

Glass is said to be an amorphous material. This means that:

What is the process of heating raw rubber with less amount of sulfur?

What element is known as the lightest metal?

What is used for predicting the behavior of non-ideal gases?

In electrolysis, the anions migrate to the anode. Which of the following ions migrate to the other electrode?

A plane intercepts the coordinate axis at h = ½, k = 1, and l= infinity. What are the Miller indices of the plane?

How are elements numbered 58 to 71 in the periodic table called?

study of all the properties and characteristics of other elements.

The capacity to do work.

Elements which generally exhibits multiple oxidation state are

Property of matter that can be observed without changing the composition. Ex. Color, odor, solubility, density, taste, boiling point, melting point, hardness and etc.

smallest particle of a matter; derived from the Greek word "atoms" meaning "uncut" or indivisible.

Energy possessed by matter in motion.

Minimum energy needed for reaction is called

Which of the following metallic element has a meaning "heavy stone"?

What is the empirical formula for nitric acid?

Change in matter in which substances retain its original identity and no new elements or compounds are formed. Ex. Crushing of stone, stretching rubber band evaporation of alcohol.

Type of mixture whose composition is not uniform.

What type of bond result in the form of sharing electrons between two atoms?

Which is the strong bond between hydrogen atoms known as?

In a crystal structure, which is an interstitial atom?

What is the effect of Phosphorus in cast iron?

Which are the electrostatic forces that exist between ions?

What is the oxidation state of Aluminum?

have luster, conduct electricity, conduct heat, malleable and ductile Ex. Groups IA and IIA and the transition metals.

Fall between metals and nonmetals, they have properties like that of metal and metals Ex. N, C, etc.

A substance that losses electron during an oxidation reduction process?

Property of matter that is observed when a substance undergoes a change in composition. Ex. Iron reach in oxygen to produce iron oxide.

What theory of atomic structure which stated that no two electrons in a given atom can have the same set of four quantum numbers?

Liquid in chemistry is ____.

Which of the following is an alkaline earth metal?

Which of the following is highly reactive in its pure form?

Compressive strength of fully cured concrete is most directly related to:

When Fe++ changes to Fe+++ in a reaction

Type of energy change where energy is absorbed.

When the charge of an atom becomes unbalanced, the charge atom is called.

Kind of energy due position or condition stress.

What is a substance that cannot be decomposed into simpler substances during ordinary chemical reactions?

study of carbon compounds

The sodium ion in sodium chloride, NaCI, has what charge?

All of the following statements about pH of a solution are correct, EXCEPT:

the amount of matter present in a given substance.

The number of atom/s per unit cell in a Face-Centered-Cubic (FCC) structure is

Gases, water, alcohol and benzene are examples of _____.

Do not shine, do not conduct electric current and heat and are not malleable and ductile Ex. C, N, O, F

Salt water, rubber, iron rust are called:

All isotopes of the same element have

Type of mixture whose composition is uniform.

The purpose of Aluminum in steel alloying is

What is the common unit used to indicate the mass of a particle?

This law states that energy may be change form one form to another, but it is never created nor destroyed.

Which of the following may be the Poison ratio of a material?

Steel used for axles, gears and similar parts requiring medium to high hardness and high strength is known as

In the periodic table of elements, the number of new artificially prepared (synthetic) elements is

What impurity in steel can cause "red shortness" which means the steel becomes unworkable at high temperature?

What do you called the horizontal arrangement of elements of increasing atomic number in the periodic table?

Which of these elements has the highest atomic number?

This law states that in different compounds containing the same elements, the masses of one element combine with a fixed mass of the other element are in ratio of small whole number. (Dalton's Law)

What are the van der Waals forces?