Elements and Compounds

Question 1

Four new elements have been officially added to the periodic table of elements in June of 2016 and these are?

Answer 1

NIHONIUM , MOSCOVIUM, TENNESSINE, OGANESSON

Question 2

IUPAC stands for?

Answer 2

INTERNATIONAL UNION OF PURE APPLIED CHEMISTRY

Question 3

a list of all known elements in a tabulated form

Answer 3

PERIODIC TABLE OF ELEMENTS

Question 4

elements are arranged in such a manner so that elements with similar properties are close together

Answer 4

PERIODIC TABLE OF ELEMENTS

Question 5

properties repeat themselves every few elements

Answer 5

PERIODIC

Question 6

elements arranged in rows are called

Answer 6

groups

Question 7

elements arranged in columns are called

Answer 7

PERIODS

Question 8

elements with similar properties are arranged in different group. TRUE OR FALSE

Answer 8

FALSE

Question 9

is a useful tool in identifying elements the exhibit similar properties.

Answer 9

THE PERIODIC TABLE OF ELEMENTS

Question 10

lustrous solid at room temperature (except Hg, which is liquid)

Answer 10

METALS

Question 11

ductility and malleability

Answer 11

METALS

Question 11

hardness and tensile strength

Answer 11

METALS

Question 12

good heat/electricity conductors

Answer 12

METALS

Question 13

high melting point/boiling point

Answer 13

METALS

Question 14

either solid or gas at room temperature (except Br2, which is liquid)

Answer 14

NONMETALS

Question 15

brittle and dull solids

Answer 15

NONMETALS

Question 16

poor conductors of heat and electricity

Answer 16

NONMETALS

Question 17

low melting and boiling points

Answer 17

NONMETALS

Question 18

exhibit properties of both metals and nonmetal

Answer 18

METALLOIDS/SEMIMETALS

Question 19

conducts heat and electricity but not as good as how metals act as conductors

Answer 19

METALLOIDS/SEMIMETALS

Question 20

a material that can conduct some electricity better than an insulator

Answer 20

SEMICONDUCTORS

Question 21

some can conduct electricity as much as metals

Answer 21

SEMICONDUCTORS

Question 22

a pure substance that is made up of different elements

Answer 22

COMPOUND

Question 23

atoms are joined together by chemical bonds

Answer 23

COMPOUND

Question 24

has a definite composition wherein its constituent elements always occur in the same proportion

Answer 24

COMPOUND

Question 25

the process of creating compounds

Answer 25

CHEMICAL REACTION

Question 26

chemical change

Answer 26

CHEMICAL REACTION

Question 27

results in the formation of a new substance (products) with a different identity from the elements or compounds that constitute it (reactants)

Answer 27

CHEMICAL REACTION

Question 28

a chemical reaction that gives off heat (i.e. combustion reaction)

Answer 28

EXOTHERMIC REACTION

Question 29

a chemical reaction that absorbs heat as it occurs, allowing it to produce new compounds (i.e. photosynthesis)

Answer 29

ENDOTHERMIC REACTION

Question 30

a class of compounds in which one or more carbon atoms are bonded to other elements, most commonly hydrogen, oxygen, or nitrogen

Answer 30

ORGANIC COMPOUND

Question 31

all living things are composed of

Answer 31

ORGANIC COMPOUNDS

Question 32

not all carbon-containing compounds are organic TRUE OR FALSE

Answer 32

TRUE

Question 33

a class of compounds lacking carbon-hydrogen bonds

Answer 33

INORGANIC COMPOUNDS

Question 34

everything else except carbon

Answer 34

INORGANIC COMPOUND

Question 35

comprise most of Earth’s crust

Answer 35

INORGANIC COMPOUND

Question 36

compounds that exhibit

Answer 36

IONIC BONDING

Question 37

electron transfer

Answer 37

IONIC BONDING

Question 38

made up of positively charged species (cations) bonded to negatively charged species (anions)

Answer 38

IONIC BONDING

Question 39

are positively charged species

Answer 39

cations

Question 40

are negatively charged species

Answer 40

anions

Question 41

compounds that exhibit covalent bonding

Answer 41

COVALENT COMPOUNDS

Question 42

electron sharing

Answer 42

COVALENT COMPOUNDS

Question 43

a combination of chemical symbols of elements that constitute the compound

Answer 43

CHEMICAL FORMULA

Question 44

to indicate the number of atoms of a given element

Answer 44

SUBSCRIPT

Question 45

are materials that contain chemical substances that are manufactured and processed for specific purposes such as medication, food preparation, cleaning and maintenance, fuel resources, and construction.

Answer 45

CHEMICAL PRODUCTS

Question 46

is any substance that is ingested in order to make up for one’s nutrient deficiency or to augment one’s dietary consumption.

Answer 46

FOOD SUPPLEMENT

Question 47

This substance can be taken in the form of pills, tablets, pastilles, ampoules, powder in sachets, or liquid drink.

Answer 47

MEDICINE PRODUCTS

Question 48

are for topical administration or application on a certain part of the body. -Antibacterial ointments -Medicinal soaps

Answer 48

MEDICINE PRODUCTS

Question 49

used to prevent infection of wounds.

Answer 49

ANTISEPTICS OR ANTIMICROBIAL MEDICINES

Question 50

are medicines taken to neutralize the acid in the stomach.

Answer 50

ANTACIDS

Question 51

are chemical products that are used to remove dirt on hard surfaces.

Answer 51

CLEANING PRODUCTS

Question 52

The purpose of these products is to eliminate dirt such as dust, foul odor, and stain.

Answer 52

CLEANING PRODUCTS

Question 53

These products contain elements and compounds that are known to have cleaning properties.

Answer 53

CLEANING PRODUCTS

Question 54

are used for servicing, repairing, and restoring various materials or equipment to keep them from functioning.

Answer 54

MAINTENANCE PRODUCTS

Question 55

are oils that are used to reduce the friction on surfaces of objects that are in contact.

Answer 55

LUBRICANTS