MILLIONAIRE FINAL EXAM

WHO WANTS TO BE A MILLIONAIRE

START

A chemist millionaire actually

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When potassium iodide (KI) reacts with lead (II) nitrate (Pb(NO₃)₂), forming a bright yellow precipitate and a soluble salt, what is the precipitate formed?:

PbI

PbI₂

Pb₂I

PbNO₃

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Which formula is used for the convention of grams to moles?

Moles (Molarity) x (Mass in g)

Moles (Mass in grams) x (Molar Mass in g/mol)

Moles (Mass in grams) / (Atomic Mass)

Moles (Mass in g) / (Molarity Mass)

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In a single replacement reaction between iron (Fe) and copper sulfate (CuSO₄), where iron's oxidation state changes from 0 to +2, what is the product formed?

Cu

Fe₂(SO₄)₃

FeSO₄

CuSO₄

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What is the law of conservation of mass?

The mass of reactants always decreases while the base increases.

Mass cannot be created or destroyed in a chemical reaction

Matter cannot be created or destroyed in a chemical reaction

Atoms can not be created or destroyed as needed during a chemical reaction

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If you had 50 grams of Carbon dioxide (CO2). How many moles and molecules of carbon dioxide do you have?

Moles (CO2) ≈ 2.27 moles, Molecules (CO2) ≈ 1.37 × 10^24 molecules

Moles (CO2) ≈ 1.14 moles, Molecules (CO2) ≈ 6.85 × 10^23 molecules

Moles (CO2) ≈ 3.42 moles, Molecules (CO2) ≈ 2.04 × 10^24 molecules

Moles (CO2) ≈ 0.57 moles, Molecules (CO2) ≈ 3.42 × 10^23 molecules

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How many grams are in 30 moles of Hydrogen H2?

60.2g

40.5g

30.3g

80.7g

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Balance the following equation C12H22O11 + H2O ----> C6H12O6 + C6H12O6

3:1:2:2

1:1:1:1

1:2:2:1

3:1:1:2

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What is the name for the compound with the formula Fe2(SO4)3?

Iron(II) sulfate

Ferrous sulfate

Iron(III) sulfate

Iron sulfate

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How does Avogadro's number relate to the concept of a mole?

Avogadro's number is the number of moles in one mole of a substance.

Avogadro's number is the number of atoms or molecules in one mole of a substance.

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Avogadro's number is the molar volume of one mole of a gas.

Avogadro's number is the molar mass of one mole of a substance.

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If you have 3 moles of oxygen gas (O2), how many oxygen molecules are present?

9.03 x 10^23

6.02 x 10^23

1.8 x 10^24

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When iron (Fe) reacts with sulfur (S) to form iron sulfide (FeS), what type of reaction is this?

Single displacement reaction

Combustion reaction

Decomposition reaction

Synthesis reaction

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In a chemical reaction, if 10 grams of reactant A react with 15 grams of reactant B to produce 20 grams of product C, which statement is true?

The law of conservation of matter is upheld because the total mass before and after the reaction is the same.

The reaction is not balanced, so the law of conservation of matter does not apply

The law of conservation of matter is violated because mass is not conserved.

The law of conservation of matter only applies to closed systems.

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Balance the following equationKMnO4 + H2C2O4 + H2SO4 -> MnSO4 + CO2 + H2O + K2SO4

2:5:3:2:10:6:2

2:5:3:2:10:8:1

2:5:3:2:10:8:12

5:2:1:2:10:8:1

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Does dissolving salt in water demonstrate the conservation of mass?

Yes, the salt-water mix weighs more than the starting water, demonstrating that the mass was conserved

Yes, the water + salt weigh the same when mixed than when they are not mixed

Yes, the water + salt weigh the same when reacted than when they are not reacting

No, the salt crystals disappear because they react so their mass is lost

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What are the oxidation numbers for (NH4)(PO3)?

N=-3 H= +1 P= +3 O= -2

N= +5 H= -1 P= +5 O= -2

N=+3 H=+1 P=+5 O= -2

N=+5 H=+1 P=+5 O= -2

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What is the name and formula for the binary compound with aluminum and oxygen?

AlO3 Aluminium Trioxide

Al2O3 Dialuminum Trioxide

Al3O2 Trialuminum Dioxide

Al2O3 Aluminum Oxide

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Which is the chemical formula of titanium acetate?

Ti(HBrO3)

Ti2(Cr2O7)

Ti(C2H3O2)

Ti(Cr2O7)

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In the reaction between sodium hydroxide (NaOH) and hydrochloric acid (HCl) to produce sodium chloride (NaCl) and water (H2O), which type of chemical reaction is occurring?

Synthesis, since there are two reagents forming one product.

Double displacement, where the positive ions in the reactants switch places.

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Decomposition, as the reactants break down into multiple products.

Single displacement, because one element displaces another in the products.

WELL DONE!

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YOU WIN!

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