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

Liquid in chemistry is ____.

Chemical symbol of Sodium Oxide

What is the empirical formula for nitric acid?

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

What are the elements comprises vinegar?

Elements which generally exhibits multiple oxidation state are

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

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

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

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 ______

Base samples causes litmus to turn ____.

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

Minimum energy needed for reaction is called

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

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

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

What is the oxidation state of Aluminum?

What element is known as the lightest metal?

Which is the strong bond between hydrogen atoms known as?

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

In a crystal structure, which is an interstitial atom?

The ores from which zinc is obtained is

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

The purpose of copper in steel alloying is to increase

Which of the following materials is NOT a Viscoelastic material?

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

What is the effect of Phosphorus in cast iron?

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

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

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

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

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

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

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

study of carbon compounds

study of all the properties and characteristics of other elements.

Chemistry that deals with the analysis and identification of substances.

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

Chemistry which is concerned with materials found in living organisms.

the amount of matter present in a given substance.

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

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

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

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.

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.

The capacity to do work.

Kind of energy due position or condition stress.

Energy possessed by matter in motion.

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

Type of energy change where energy is liberated.

Type of energy change where energy is absorbed.

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

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

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

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)

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

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

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

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

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

Stable and un reactive and are found in group VIIIA

Type of mixture whose composition is uniform.

Type of mixture whose composition is not uniform.

arrangement and distribution of the elementary particles within an atom.

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

Salt water, rubber, iron rust are called:

A substance that losses electron during an oxidation reduction process?

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

What is the chemical formula of Dinitrogen Pentoxide?

Carbon and Hydrogen containing only carbon single bond.

Which of the following gases is classified as electronegative?

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

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

The ores from which aluminum is obtained is

The purpose of Aluminum in steel alloying is

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

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

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

Compared to gases and liquids, solids are less:

All isotopes of the same element have

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

Which of the following is an alkaline earth metal?

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?

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

Which are the electrostatic forces that exist between ions?

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

What are the van der Waals forces?

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

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

The charge of aluminum atom in the aluminum foil is: