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Chemistry > Deck 9 (161 - 180) > Flashcards

Deck 9 (161 - 180) Flashcards

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1
Q
  1. Write the formula for cadmium perchlorate
A

Cd(ClO4)2

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2
Q
  1. The polysaccharide that stores energy in animals is called ?
A

glycogen

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3
Q
  1. Acetic acid is found in:

a. antacids
b. the stomach
c. vinegar
d. oranges

A

c. vinegar

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4
Q
  1. Fructose is a(n):

a. aldose
b. ketose
c. pentose
d. heptose

A

ketose

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5
Q
  1. PIC
A
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6
Q
  1. Solid, liquid and gas are:

a. physical properties
b. elements
c. compounds
d. the three common states of matter on earth

A

d. the three common states of matter on earth

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7
Q
  1. What is the total number of electrons needed to fill the fourth main energy level?
A

32

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8
Q
  1. What is the molar concentration of a solution that contains 0.202 mol KCl in 7.98 L of solution ?
    Mm(KCl) = 74.55 g.mol-1

a. 0.0132 mol.dm-3
b. 0.0253 mol.dm-3
c. 0.459 mol.dm-3
d. 1.36 mol.dm-3

A

b. 0.0253 mol.dm-3

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9
Q
  1. Maltose is:

a. cane sugar
b. malt sugar
c. milk sugar
d. grape sugar

A

malt sugar

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10
Q
  1. Which of the following is a Bronsted-Lowry base ?

a. HCl
b. HCO3-
c. H3O+
d. H3PO4

A

HCO3-

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11
Q
  1. How many ml of 60% acetic acid with density p = 1.0629 g.cm-3 do you need to prepare 250 ml 0.02 mol.dm-3 solution ?
    Mm(CH3COOH) = 60 g.mol-1
A

0.47 ml

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12
Q
  1. Give the name to:

H3C-CH2-CH2-CH2-COO-CH2-CH2-CH3

A

propyl pentanoate

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13
Q
  1. Which of the solutions is the most acidic ?

a. pH = 13
b. pOH = 12
c. pH = 3
d. pOH =4

A

pOH = 12

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14
Q
  1. Anhydrous does mean …
A

without water

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15
Q
  1. Sucrose is made up of …
A

D-fructose and D-glucose

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16
Q
  1. Is sodium hydroxide an acid or a base?
A

base

17
Q
  1. What type of organic molecule consists of long chain of amino acids ?
A

proteins

18
Q
  1. How many grams of water can be prepared from 8g of hydrogen at standard conditions?
    Mm(H2O) = 18 g.mol-1
    Mm(H2) = 2 g.mol-1

2 H2(g) + O2(g) -> 2 H2O

a. 18
b. 8
c. 72
d. 2

A

72

19
Q
  1. Sucrose is not:

a. cane sugar
b. beet sugar
c. milk sugar
d. table sugar

A

milk sugar

20
Q
  1. Identify the group in which all elements have the valence shell configuration ns2:

a. group IA
b. group IIA
c. group IB
d. group IIB

A

group IIA

Chemistry (25 decks)

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