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Natural science > Natural Science 1 > Flashcards

Natural Science 1 Flashcards

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
Q

What is the formula for thiosulfate ion?

A

S2O3^2-

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26
Q

Fill in the blank: A polyatomic ion is a charged chemical species composed of _______.

A

two or more atoms

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27
Q

What is the formula for lead(II) nitrate?

A

Pb(NO3)2

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28
Q

What is the formula for iron(III) cation?

A

Fe3+

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29
Q

What is the formula for chloride ion?

A

Cl-

30
Q

What is the formula for the nitrate ion?

A

NO3-

31
Q

What is the formula for the carbonate ion?

A

CO3^2-

32
Q

What is the reaction equation for potassium iodide and mercury(II) chloride?

A

2KI + HgCl2 → 2KCl + HgI2

33
Q

What is the formula for the phosphate ion?

A

PO4^3-

34
Q

What is the formula for the sulfide ion?

A

S2-

35
Q

What is the formula for the chromate ion?

A

CrO42-

36
Q

What is the formula for the phosphate ion?

A

PO43-

37
Q

Write the reaction for trisodium phosphate and silver(I) nitrate.

A

Na3PO4 + 3AgNO3 → Ag3PO4 + 3NaNO3

38
Q

Write the reaction for potassium chromate and lead(II) nitrate.

A

K2CrO4 + Pb(NO3)2 → PbCrO4 + 2KNO3

39
Q

Write the reaction for potassium iodide and mercury(II) chloride.

A

2KI + HgCl2 → HgI2 + 2KCl

40
Q

Write the reaction for 4KI and mercury(II) chloride.

A

4KI + HgCl2 → K2[HgI4] + 2KCl

41
Q

What is the product of the reaction between HgI2 and 2KI?

A

[HgI4]2- + 2K+

42
Q

Write the reaction for sodium hydroxide and lead(II) nitrate.

A

2NaOH + Pb(NO3)2 → Pb(OH)2 + 2NaNO3

43
Q

What is the product of the reaction between 2NaOH and Pb(OH)2?

A

[Pb(OH)4]2- + 2Na+

44
Q

Write the reaction for 4NaOH and lead(II) nitrate.

A

4NaOH + Pb(NO3)2 → Na2[Pb(OH)4] + NaNO3

45
Q

Write the reaction for barium chloride and sulfuric acid.

A

BaCl2 + H2SO4 = BaSO4 + 2HCl

46
Q

Write the reaction for silver nitrate and hydrogen sulfide.

A

2AgNO3 + H2S = Ag2S + 2HNO3

47
Q

Write the reaction for calcium bromide and aluminium carbonate.

A

3CaBr2 + Al2(CO3)3 = 3CaCO3 + 2AlBr3

48
Q

Write the reaction for copper(II) hydroxide and nitric acid.

A

Cu(OH)2 + 2HNO3 = Cu(NO3)2 + 2H2O

49
Q

Write the reaction for potassium chloride and silver nitrite.

A

KCl + AgNO3 = KNO3 + AgCl

50
Q

Write the reaction for sodium phosphate and magnesium bromide.

A

2Na3PO4 + 3MgBr2 = Mg3(PO4)2 + 6NaBr

51
Q

Write the reaction for zinc(II) bromide and sodium hydroxide.

A

ZnBr2 + 2NaOH = Zn(OH)2 + 2NaBr

52
Q

Write the reaction for sodium hydroxide and sulfuric acid.

A

NaOH + H2SO4 = Na2SO4 + 2H2O

53
Q

What is the formula for sodium bromide?

A

NaBr

54
Q

What is the formula for iron(II) oxide?

A

FeO

55
Q

What is the formula for lithium iodide?

A

LiI

56
Q

What is the formula for zinc carbonate?

A

ZnCO3

57
Q

What is the formula for silver sulfide?

A

Ag2S

58
Q

What is the formula for copper(II) nitrate?

A

Cu(NO3)2

59
Q

What is the formula for dihydrogen sulfide?

A

H2S

60
Q

What is the formula for aluminium oxide?

A

Al2O3

61
Q

What is the formula for bromine?

A

Br2

62
Q

What is the formula for mercury(II) chloride?

A

HgCl2

63
Q

What is the formula for mercury(I) bromide?

A

Hg2Br2

64
Q

What is the formula for ammonium nitrate?

A

NH4NO3

65
Q

What is the formula for potassium sulfate?

A

K2SO4

66
Q

What is the formula for silver nitrate?

A

AgNO3

67
Q

What is the formula for potassium carbonate?

A

K2CO3

68
Q

What is the formula for aluminium phosphate?

A

AlPO4

69
Q

What is the formula for iron(III) oxide?

A

Fe2O3

70
Q

What is the formula for silver iodide?

A

AgI

Natural science (2 decks)

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