Ch4

Question 1

what group is halogens

Answer 1

group 17

Question 2

diatomic

Answer 2

two atoms of same element

Question 3

molecule definition

Answer 3

things formed by chemical bonding

Question 4

why do chemical bonds form

Answer 4

to reduce potential energy of charged particles

Question 5

why does bonding lower potential energy

Answer 5

valence shells get filled which makes atom not want to react anymore

Question 6

Do more complicated molecules have lower potential energy or simpler ones

Answer 6

simpler ones have lower potential energy

Question 7

lattice energy

Answer 7

amount of energy it takes to forms crystalline lattice

Question 8

Ionic compound

Answer 8

ionic compound exchanges electrons between two elements that makes the element neutral

Question 9

What does higher lattice energy mean

Answer 9

something is more exothermic and it means the chemical has higher boiling point

Question 10

empirical formula

Answer 10

simplest whole number ratio of the atoms

Question 11

molecular formula

Answer 11

exact number of each atom in molecule

Question 12

structural formula

Answer 12

shows connectivity of atoms

Question 13

formula mass

Answer 13

mass of atoms in the formula in (amu)

Question 14

molar mass

Answer 14

mass or 1 mole or molecule in grams

Question 15

which elements expand their octets

Answer 15

row 3 and below

Question 16

ionic bond has what as components

Answer 16

metal and nonmetal

Question 17

what are components of covalent bond

Answer 17

two nonmetals

Question 18

Anion

Answer 18

gains electron

Question 19

cation

Answer 19

loses electrons

Question 20

covalent bond does what with electrons

Answer 20

share (coparent)

Question 21

ionic bond does what with electrons

Answer 21

transfers them

Question 22

which element is listed first in names

Answer 22

metal or more positive element

Question 23

what can be inferred about shorter bonds

Answer 23

they are stronger

Question 24

duet

Answer 24

pair of 2 electrons

Question 25

Where does unaccounted energy go in chem reaction

Answer 25

emitted as heat

Question 26

percent composition equation

Answer 26

divide mass by molar mass divided by smallest molar amount

Question 27

what is an ion

Answer 27

a element or molecule with net charge

Question 28

how do u name normal ionic compound

Answer 28

metal name plus nonmetal with suffix ide

Question 29

how to name element metals that have multiple ions

Answer 29

name of metal and it’s charge in roman numerals plus name of nonmetal with suffix ide

Question 30

what is true about ionic compounds and the charges of their reactants

Answer 30

one with be positive one will be negative

Question 31

common name

Answer 31

name that element has been given like bleach and stuff

Question 32

systematic name

Answer 32

official name of compound

Question 33

Oxyanions

Answer 33

a polyatomic anion with nonmetal covalent my bonded to one or more oxygen atoms

Question 34

Hydrate

Answer 34

An ionic compound with specific number of water molecules associated with each formula unit

Question 35

Anhydrous

Answer 35

hydrate without water

Question 36

what is an organic compound

Answer 36

a compound with carbon