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Natural Science 1 Flashcards

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1
Q

What are the key topics covered in the lectures?

A

Formulas, reaction equations, SI units, density, amount, concentration(s) of solutions, dilutions, oxidation numbers, stoichiometry, acid-base theories, pH calculations.

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2
Q

What is the oxidation number of copper in CuO?

A

Copper (II) oxide has a copper oxidation number of +2.

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3
Q

What is the oxidation number of copper in Cu2O?

A

Copper (I) oxide has a copper oxidation number of +1.

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4
Q

What is the formula for hydrogen molecule?

A

H2

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5
Q

What is the ionic charge of hydrogen ion?

A

H+

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6
Q

What type of bond is formed between atoms with low and high electronegativity?

A

Ionic bond

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7
Q

What are the primary bond types?

A
  • Metallic bond
  • Ionic bond
  • Covalent bond
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8
Q

What is the general formula for calcium chloride?

A

CaCl2

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9
Q

What is the formula for magnesium ion?

A

Mg2+

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10
Q

What is the formula for bromide ion?

A

Br-

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11
Q

What is the formula for sulfate ion?

A

SO4^2-

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12
Q

What is the formula for ammonium ion?

A

NH4+

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13
Q

Fill in the blank: Electronegativity is the tendency for an atom to attract _______.

A

shared electrons

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14
Q

What is the formula of sodium sulfate?

A

Na2SO4

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15
Q

What is the relationship between cations and anions?

A

Cations are positively charged ions, while anions are negatively charged ions.

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16
Q

What is the formula for copper(I)-oxide?

A

Cu2O

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17
Q

What is the formula for zinc chloride?

A

ZnCl2

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18
Q

What is the formula for potassium phosphate?

A

K3PO4

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19
Q

What is the formula for copper(II)-sulfate?

A

CuSO4

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20
Q

What is the formula for silver bromide?

A

AgBr

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21
Q

What is the significance of the stoichiometric number in a reaction equation?

A

It indicates the ratio of reactants and products in a chemical reaction.

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22
Q

True or False: Every ionic compound is electrically neutral.

A

True

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23
Q

What is the formula for the hydroxide ion?

A

OH-

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24
Q

What is the formula for ammonium carbonate?

A

(NH4)2CO3

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25
What is the formula for thiosulfate ion?
S2O3^2-
26
Fill in the blank: A polyatomic ion is a charged chemical species composed of _______.
two or more atoms
27
What is the formula for lead(II) nitrate?
Pb(NO3)2
28
What is the formula for iron(III) cation?
Fe3+
29
What is the formula for chloride ion?
Cl-
30
What is the formula for the nitrate ion?
NO3-
31
What is the formula for the carbonate ion?
CO3^2-
32
What is the reaction equation for potassium iodide and mercury(II) chloride?
2KI + HgCl2 → 2KCl + HgI2
33
What is the formula for the phosphate ion?
PO4^3-
34
What is the formula for the sulfide ion?
S2-
35
What is the formula for the chromate ion?
CrO42-
36
What is the formula for the phosphate ion?
PO43-
37
Write the reaction for trisodium phosphate and silver(I) nitrate.
Na3PO4 + 3AgNO3 → Ag3PO4 + 3NaNO3
38
Write the reaction for potassium chromate and lead(II) nitrate.
K2CrO4 + Pb(NO3)2 → PbCrO4 + 2KNO3
39
Write the reaction for potassium iodide and mercury(II) chloride.
2KI + HgCl2 → HgI2 + 2KCl
40
Write the reaction for 4KI and mercury(II) chloride.
4KI + HgCl2 → K2[HgI4] + 2KCl
41
What is the product of the reaction between HgI2 and 2KI?
[HgI4]2- + 2K+
42
Write the reaction for sodium hydroxide and lead(II) nitrate.
2NaOH + Pb(NO3)2 → Pb(OH)2 + 2NaNO3
43
What is the product of the reaction between 2NaOH and Pb(OH)2?
[Pb(OH)4]2- + 2Na+
44
Write the reaction for 4NaOH and lead(II) nitrate.
4NaOH + Pb(NO3)2 → Na2[Pb(OH)4] + NaNO3
45
Write the reaction for barium chloride and sulfuric acid.
BaCl2 + H2SO4 = BaSO4 + 2HCl
46
Write the reaction for silver nitrate and hydrogen sulfide.
2AgNO3 + H2S = Ag2S + 2HNO3
47
Write the reaction for calcium bromide and aluminium carbonate.
3CaBr2 + Al2(CO3)3 = 3CaCO3 + 2AlBr3
48
Write the reaction for copper(II) hydroxide and nitric acid.
Cu(OH)2 + 2HNO3 = Cu(NO3)2 + 2H2O
49
Write the reaction for potassium chloride and silver nitrite.
KCl + AgNO3 = KNO3 + AgCl
50
Write the reaction for sodium phosphate and magnesium bromide.
2Na3PO4 + 3MgBr2 = Mg3(PO4)2 + 6NaBr
51
Write the reaction for zinc(II) bromide and sodium hydroxide.
ZnBr2 + 2NaOH = Zn(OH)2 + 2NaBr
52
Write the reaction for sodium hydroxide and sulfuric acid.
NaOH + H2SO4 = Na2SO4 + 2H2O
53
What is the formula for sodium bromide?
NaBr
54
What is the formula for iron(II) oxide?
FeO
55
What is the formula for lithium iodide?
LiI
56
What is the formula for zinc carbonate?
ZnCO3
57
What is the formula for silver sulfide?
Ag2S
58
What is the formula for copper(II) nitrate?
Cu(NO3)2
59
What is the formula for dihydrogen sulfide?
H2S
60
What is the formula for aluminium oxide?
Al2O3
61
What is the formula for bromine?
Br2
62
What is the formula for mercury(II) chloride?
HgCl2
63
What is the formula for mercury(I) bromide?
Hg2Br2
64
What is the formula for ammonium nitrate?
NH4NO3
65
What is the formula for potassium sulfate?
K2SO4
66
What is the formula for silver nitrate?
AgNO3
67
What is the formula for potassium carbonate?
K2CO3
68
What is the formula for aluminium phosphate?
AlPO4
69
What is the formula for iron(III) oxide?
Fe2O3
70
What is the formula for silver iodide?
AgI

Natural science (2 decks)

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