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SNC 2DI > Random > Flashcards

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1
Q

What is an atom?

A

An atom is the smallest unit of ordinary matter that has properties of a chemical element

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2
Q

Ion

A

A charged particle formed from the loss or gain of one or more electrons

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3
Q

Polyatomic ion

A

An ion that is composed of more than one atom

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4
Q

Molecule

A

A neutral particle composed of two or more atoms joined together by covalent bonds

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5
Q

Element

A

An element is a substance that is made entirely of one type of atom.

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6
Q

Diatomic Molecules

A

Diatomic Molecules are molecules composed of only two atoms, either the same or different chemical elements

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7
Q

Ionic bonds

A

Ionic bonds are charged atoms that are attracted to each other

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8
Q

Binary Acid

A

An acid composed of hydrogen and non-metal

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9
Q

Compound

A

Compound is a molecule made up of atoms from different elements

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10
Q

Pure Substance

A

A material that is composed of only one type of particle

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11
Q

Solution

A

In a chemical, solution is a homogeneous mixture composed of only one phase. In such a mixture a solute is a substance dissolved in another substance known a solvent

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12
Q

Heterogeneous Mixture

A

when two or more objects are seen by the human eye in a mixture

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13
Q

Physical Change

A

Physical changes are changes affecting the form of the chemical substance but not the chemical composition. Physical changes are used to separate mixtures into their component compounds, but usually cannot be separated into chemical elements or simpler compounds

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14
Q

Chemical Reaction

A

A process in which new substances with new properties are formed

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15
Q

Covalent Bonds

A

Covalent bonds involve the sharing of a pair valence electrons by two atoms. Once they share the electrons they become stable.

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16
Q

Oxyacid

A

An acid composed of hydrogen, oxygen and another element

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17
Q

Physical Property

A

A physical property is any property that is measureable whose value describes a state of a physical system

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18
Q

Chemical Property

A

A chemical property is any of a materials properties that become evident during a chemical reaction

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19
Q

Catalyst

A

A substance that increases the rate of reaction and is regenerated at the end of a reaction

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20
Q

Concentration

A

The amount of a particular substance in a specific amount of another substance, also the amount of dissolved substance contained per unit of volume of solvent

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21
Q

Rate of Reaction

A

The rate of reaction for a given chemical reaction is the measure of change in concentration of the reactants or the change if concentration of the product in unit of time

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22
Q

Electromagnetic Spectrum

A

The entire range of electromagnetic waves in order of wavelength and/or frequency

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23
Q

Wavelength

A

The distance from one crest (or trough) of a wave to the next crest (or trough)

24
Q

Frequency

A

number of crests (or troughs) that pass a given point in one second

25
Q

Incident Ray

A

A ray of light that travels from a light source toward a surface

26
Q

Reflected Ray

A

A ray that begins at the point where the incident ray and the normal meet

27
Q

Normal`

A

A line constructed to be perpendicular to a surface where the ray of light meets the surface

28
Q

Angle of Incidence

A

The angle between the incident ray and the normal in a ray diagram

29
Q

Angle of Reflection

A

The angle between the reflected ray and the normal in a ray diagram

30
Q

Reflection

A

The change in direction of a light ray when it bounces off a surface

31
Q

Critical Angle

A

The angle of incidence that produces an angle of refraction of 90degrees

32
Q

Refraction

A

The bending of light as it travels, at an angle, from a material with one refractive index to a material with a different refractive index

33
Q

Virtual Image

A

An image formed by rays that appear to be coming from a certain position, but are not actually coming from that position; image doesn’t form a visible projection on a screen

34
Q

Real Image

A

An image that is formed when reflected rays meet

35
Q

Lens

A

A transparent object with at least one curved side that causes light to bend

36
Q

Focal Point

A

The point on the principal axis through which reflected rays pass when the incident rays are parallel to and near the principal axis

37
Q

Focal Length

A

The distance between the vertex of a mirror and the point; half the distance from the vertex to the centre of curvature

38
Q

Principal Axis

A

The line that passes through the centre of curvature, C, of a mirror or lens and is normal to the axis of symmetry

39
Q

Magnification

A

The change in size of an optically produced image

40
Q

Concave Mirror

A

A mirror whose reflecting surface curves inward

41
Q

Speed of light

A

3.0x 10^8

42
Q

Convex Mirror

A

A mirror whose reflecting surface curves outward

43
Q

Incandescence

A

Light emitted from a material because of the high temperature of material

44
Q

Bioluminescence

A

Light that that is produced by a biochemical reaction in a living organism

45
Q

Flourescence

A

Light that is emitted during exposure of the source to UV light

46
Q

Phosphorescence

A

Light that is emitted due to the exposure of the source to UV light, and that continues to be emitted for some time in the absence of the UV light

47
Q

Centre of Curvature

A

The centre of a circle that passes through a curve at a given point and has the same tangent and curvature at that point.

48
Q

Index of refraction

A

The ratio of the speed of light in a vacuum to the speed of light in a given medium

49
Q

Anaphase

A

The phase of mitosis in which the centromere splits apart the and the chromatids are pulled to opposite sides of the cell by the spindle fibres

50
Q

Metaphase

A

The phase of mitosis in which the chromosomes are aligned across the center of the cell

51
Q

Prophase

A

The phase of mitosis in which sister chromatids condense and the chromosomes become visible

52
Q

Telophase

A

The phase of mitosis in which two daughter nuclei are formed

53
Q

SALT- S?

A

Size- same size, larger, smaller

54
Q

SALT- A?

A

Altitude- Inverted or upright

55
Q

SALT-L?

A

Loaction- Between C&F, at C, Beyond C, Behind Image

56
Q

SALT-T?

A

Type- Real or Virtual

SNC 2DI (5 decks)

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