Day 4 Bas Chem

Question 1

Study of substance

Answer 1

Basic chemistry

Question 2

Building blocks of matter - Basic unit of matter

Answer 2

Atom

Question 3

Positively charged particle

Answer 3

Protons

Question 4

Negatively charged particle

Answer 4

Electrons

Question 5

Neutrally charged particle

Answer 5

Neutrons

Question 6

Does not occupy a space and does not have a mass

Answer 6

Non-matter

Question 7

Anything that occupies space (volume) and has mass

Answer 7

Matter

Question 8

matter made up of all the same type of atom or all the same molecules

Answer 8

pure substance

Question 9

made up of one type of atom, cannot be broken down

Answer 9

elements

Question 10

lightest, most abundant element and the first element in the periodic table

Answer 10

Hydrogen

Question 11

118th element

Answer 11

Oganesson

Question 12

Classification of elements

Answer 12

Metals
Non-metals
Metalloids

Question 13

usually solid and are GOOD CONDUCTORS OF HEAT AND ELECTRICITY. metals except mercury and gallium

Answer 13

Metals

Question 14

Poor conductors of heat and electricity. Example: Oxygen, carbon, bromine, sulfur, and many other

Answer 14

Non-metals

Question 15

Have both properties of metals and non-metals

Answer 15

Metalloids

Question 16

Chemical combination of atoms, can be broken down

Answer 16

Compounds

Question 17

made up of two atoms of hydrogen and one atom of oxygen. a compound

Answer 17

water

Question 18

class of organic compound characterized by hydroxyl bonded to an alkyl group

Answer 18

alcohol

Question 19

cologne and perfume

Answer 19

hydroxyl

Question 20

fragrance and flavoring

Answer 20

ester

Question 21

chemical bonding

Answer 21

covalent bonds
ionic bonds

Question 22

sharing of electrons, bonding two or more non-metals. example: h2o, ch4, co2

Answer 22

covalent bonds

Question 23

transfer of electrons. bonding between metals and non-metals. example: NaCi (Sodium Chloride), NaF (Sodium Fluoride)

Answer 23

Ionic Bonds

Question 24

signifying a metal

Answer 24

+um

Question 25

type of matter consisting two or more different substances that have been combined WITHOUT CHEMICAL BONDING taking place, just a PHYSICAL BONDING

Answer 25

Mixture

Question 26

single phase, uniform phase

Answer 26

homogenous mixture

Question 27

term signifying homogenous mixture

Answer 27

solution

Question 28

water + sugar

Answer 28

sugar solution

Question 29

water + salt

Answer 29

brine

Question 30

mixtures that are visually distinguished

Answer 30

heterogenous mixture

Question 31

particles that do not settle. ex: milk, cloud and fog

Answer 31

colloid

Question 32

larger particles that eventually settle out. ex: chocolate milk, and orange juice

Answer 32

suspension

Question 33

states of matter

Answer 33

solid liquid gas plasma

Question 34

colloid reflecting light

Answer 34

tyndall effect

Question 35

has definite shape and volume, particles tightly packed, have very little energy, particles vibrate

Answer 35

solid

Question 36

has definite volume but no definite (takes the shape of the container), particles are loosely packed, medium energy level, particles flow around

Answer 36

liquid

Question 37

does not have definite volume and shape. free particles move freely and have a lots of energy.

Answer 37

gas

Question 38

a very hot gas of nuclei and electrons, superheated gas, 4th form of matter

Answer 38

plasma

Question 39

super cold at absolute zero temperature. a theoretical state

Answer 39

bose-einstein condensate

Question 40

chemical composition remains the same. size, shape, or amount

Answer 40

physical change

Question 41

physical change, changes in matter

Answer 41

freezing melting evaporation condensation sublimation deposition

Question 42

liquid to solid

Answer 42

freezing

Question 43

solid to liquid

Answer 43

melting

Question 44

liquid to gas

Answer 44

evaporation

Question 45

gas to liquid (precipitation in clouds)

Answer 45

condensation

Question 46

solid to gas

Answer 46

sublimation

Question 47

gas to solid

Answer 47

deposition

Question 48

chemical composition has been altered or a chemical reaction has taken place

Answer 48

chemical change

Question 49

types of chemical reaction

Answer 49

synthesis decomposition substitution double decomposition endothermic reaction (needs energy) exothermic reaction (releases energy)

Question 50

reaction between two or more simple substances to FORM A SINGLE PRODUCT

Answer 50

Synthesis

Question 51

single reactant is broken down into TWO OR MORE PRODUCTS

Answer 51

decomposition

Question 52

a more active element replaces a less active element in a compound

Answer 52

substitution

Question 53

interchange of two parts or two substances to form two new substances

Answer 53

double decomposition

Question 54

AB + energy -> A+B

Answer 54

Endothermic decomposition

Question 55

AB -> A + B + energy

Answer 55

exothermic decomposition

Question 56

pH value of acids

Answer 56

-7

Question 57

pH value of bases

Answer 57

+7

Question 58

pH value of neutral

Answer 58

7

Question 59

study of matter and energy and their relationship

Answer 59

physics

Question 60

time

Answer 60

second s

Question 61

mass

Answer 61

grams g

Question 62

distance

Answer 62

meter m

Question 63

volume

Answer 63

liter or cubic meter L or m3

Question 64

pressure

Answer 64

pascal pa

Question 65

quantity of matter in an object; can be measured in kg

Answer 65

mass

Question 66

the pull of gravity; can be measured in N (Newton)

Answer 66

weight

Question 67

continuous change in position

Answer 67

motion

Question 68

Newton's Laws of Motion

Answer 68

Law of Inertia Law of Attraction Law of Interaction

Question 69

every object continues in its state of rest or uniform motion with constant speed in a straight line, UNLESS ACTED UPON BY UNBALANCED EXTERNAL FORCES impressed upon

Answer 69

Law of Inertia

Question 70

When enough force is applied, the object will accelerate

Answer 70

Law of Acceleration

Question 71

To every action there is always an OPPOSITE OR EQUAL REACTION

Answer 71

Law of Interaction

Question 72

Capacity to do work

Answer 72

energy

Question 73

energy at rest. has the potential to fall or move

Answer 73

potential energy

Question 74

energy in motion

Answer 74

kinetic energy

Question 75

energy cannot be created or destroyed. only transformed into another formed of energy

Answer 75

conservation of energy

Question 76

study of heat and its transformation to different forms of energy. higher to lower until equilibrium. hot to cold.

Answer 76

thermodynamics

Question 77

methods of heat transfer

Answer 77

conduction convection radiation

Question 78

transmission of heat with DIRECT contact. feet to sand

Answer 78

conduction

Question 79

heat transfer through AIR AND WATER CURRENTS. hot air rises, cold air sinks

Answer 79

convection

Question 80

heat transfer through RAYS OR WAVES

Answer 80

radiation

Question 81

example of electromagnetic wave

Answer 81

light

Question 82

speed of light

Answer 82

3.0 x 10*8 m/s

Question 83

faster than sound. travels fast in vacuum.

Answer 83

light

Question 84

separation of white light by prims into bands of colors. roygbiv

Answer 84

dispersion

Question 85

bending of light as it passes through an OBSTRUCTION

Answer 85

diffraction

Question 86

overlapping of light waves

Answer 86

interference

Question 87

when light bounces off an object

Answer 87

reflection

Question 88

when light changes direction as it passes through a medium

Answer 88

refraction

Question 89

a mechanical wave

Answer 89

sound

Question 90

cannot travel in vacuum

Answer 90

sound