Nurse Cheung Chemistry Flashcards

1
Q

Direct change from solid to gas is called

Dry ice is an example

A

Sublimation

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2
Q

Direct change from gas to a solid is called

Fire extinguisher

A

Deposistion

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3
Q

Property of Matter

  1. Does not depend on the size or amount of matter in the object

Intensive or Extensive

  1. Does depend on the amount of matter in the object

Exp.
Is mass Intensive or Extensive?

Is boiling point Intensive or Extensive?

A
  1. Intensive
  2. Extensive

Mass is Extensive

Boiling Point is Intensive

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4
Q

What kind of bond is water

A

Polar covalent

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5
Q

This property of water allows it to travel through tiny capillaries and create surface tension

A

Cohesiveness

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6
Q

This property of water allows it to stick to other molecules and dissolve them

A

Adhesiveness

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7
Q

A ____ bond occurs when atoms share electrons

A

Covalent

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8
Q

Covalent bonds are common between elements of the same type.

True or False

A

True

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9
Q

What is a polar covalent bond

A

2 atoms sharing electrons unequally. Hence, one has a slightly negative and one a slightly positive charge.

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10
Q

This type of bond happens when 1 atom gives up and the other recieves an electron.

A

Ion

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11
Q

Ionic bonds happen most between these types of elements.

With this type of element usually giving up the electron.

A

Metals & non metals

Metal gives up electron to non metal

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12
Q

Cations give or receive electrons

Anions give or receive electrons

What are their charges

A

Cations give electrons

Anions receive electrons

Cation Positive

Anions Receive

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13
Q

Define solute, solvent, solution and give an example.

A

Solute disolved in the solvent to make a solution.

Salt (solute) water (solvent) salt water (solution)

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14
Q

2Na + Cl2 → 2NaCl

Is this type of reaction

A

Synthesis

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15
Q

2 seperate things joining together to form 1 compound is this type of reaction.

A

Synthesis

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16
Q

AB → A + B

What is this type of reaction?

A

Decomposition

17
Q

What kind of reaction is

1 compound breaks down into 2 or more compounds

A

Decomposition

18
Q

2AqNO3 + Cu -> Cu(NO3 ) 2 + 2Aq

2AlPO4 + 3Mg -> 2Al + Mg3 (PO4 )

2NaBr + Cl2 -> 2NaCl + Br2

These are examples of which type of reaction

A

Single replacement

19
Q

A ____ is a substance that gives off hydrogen (H+) ions when disolved in water.

A _____ or alkaline substance is one that gives off hydroxide (OH-) when it is disolved in water.

A

Acid

Base

20
Q

Litmus paper turns which color in the presence of a base.

An acid

A

Blue

Red

21
Q
  1. HC²H³O²
  2. H³PO⁴
  3. NH⁴OH
  4. LiOH
  5. HCL
  6. KOH
  7. NaOH

WHICH ARE ACIDS AND WHICH ARE BASES

How to tell the difference

A
  1. ACID
  2. ACID
  3. BASE
  4. BASE
  5. ACID
  6. BASE
  7. BASE
22
Q

CH⁴ + O² —> CO² + H²O

            Type of Reaction 

Reactants: A compound containing Carbon & Hydrogen + Oxygen

Products: Carbon Dioxide + Water

A

Combustión

23
Q

One element that starts off by itself replaces another element in a compound

Fe + CuCl² —-> Cu + FeCl²

Is this type of reaction

A

Single Replacement

24
Q

A + BC —-> B + AC

A

SIngle Replacement reaction

25
Q

The positive and negative ions in two compounds switch places

BaCl² + NaSO⁴ —-> BaSO⁴ + NaCl

A

Double Replacement

26
Q

An alkane has a _____ bond

An alkene has a _____ bond.

An alkynes has a ____ bond

A

Single, double, triple

27
Q

Air-conducting portion: Air is delivered to the lungs. This region consists of the upper and lower respiratory tract- Name these organs

Gas exchange portion: Gas exchange takes place between the air and the blood.

A

Air-conducting portion specifically, the larynx, trachea, bronchi, and bronchioles.

Gas exchange portion consists of the lungs, alveoli, and capillaries.