40 Chem 1 final DL m

Posljednje ažuriranje almost 5 years ago

Elements, compounds and mixtures

Atomic structure and electron configuration

Periodic Trends and Periodic Table

Bonding, naming and chemical equations

The next section is naming formulas and determining the correct formula for the name. Use the flowcharts and your common ion list to do this.

Questions 45 and 46 refer to the following equation:

__ Pb + __PbO₂ + __H₂SO₄--> __PbSO₄ + __ H₂O + energy

The mole, molar mass and conversions

Questions 57 - 59 refer to the following equation:

2CH₃OH + 3O₂ --> 2CO₂ + 4H₂O

40 Chem 1 final DL m

Posljednje ažuriranje almost 5 years ago

Elements, compounds and mixtures

Approximately how many elements exist in nature?

1,000

100

Which of the following is classified as an element?

water

all of the above

cereal

gold

Which of the following would NOT be classified as a mixture?

lemonade

sugar

cereal

Atomic structure and electron configuration

What is the mass of a ²⁵Mg atom?

Isotopes of the same element have different:

positions on the periodic table

atomic masses

atomic numbers

What is the electron configuration of potassium?

1s²2s²2p¹⁰3s²3p³

1s²2s²2p⁶3s²3p⁶4s¹

1s²2s²3s²3p⁶3d¹

What is the shape of a 3p atomic orbital?

a sphere

a bar

a dumbbell

How many neutrons are there in a ¹³C atom?

Two atoms with the same number of protons but a different number of neutrons are called:

Isotopes

Beta particles

Alpha particles

Ions

How many protons are there in a ¹³C atom?

As a consequence of the discovery by Rutherford, which model of the atoms is now believed to be true?

A model in which the protons, electrons, and neutrons are evenly distributed throughout the volume of the atom

A model in which the nucleus is made of protons, electrons, and neutrons

A model in which the nucleus is made of neutrons only

A model in which the region outside the nucleus is largely empty space in which the electrons are located

Which electron configuration is correct for S^2-?

1s²2s²2p⁶

1s²2s²2p⁶3s²3p⁴

1s²2s²2p⁶3s²3p⁶

How many valence electrons are there in a silicon atom?

How many electrons are there in a Cl^- atom?

Periodic Trends and Periodic Table

Which of the following elements has properties the most similiar to calcium?

strontium

germanium

yttrium

As you move from left to right across the second period of the periodic table:

the electron affinity decreases

the ionization energy increases

the atomic radii increases

Which of the following element had the smallest atomic radius?

sulfur

selenium

chlorine

Electronegativity:

Generally increases from left to right across a period

Is generally higher for metals than for nonmetals

Generally increases as you move down a group

Which of the following element is in the halogen group?

potassium

calcium

chlorine

Bonding, naming and chemical equations

In the chemical reaction in which carbon, hydrogen, and oxygen absorb heat and combine to form carbon dioxide and water, which of the following is considered to be a reactant?

water

carbon dioxide

oxygen

Which of the following is true for all chemical reactions?

The total mass of the reactants equals the total mass of the products

The total mass of the products is greater than the total mass of the reactants

The total mass of the reactants increases

What is NOT true about ionic bonds?

Held together by opposite charges

Poor conductors when dissolved

Formed between metals and non metals

Which substance is most likely ionic?

BF_³

CaS

CO_²

O_²

What is the charge on the strontium ion?

What is happening to the electrons in a covalent bond between two atoms?

They are shared.

They release light

They become excited to a higher energy level

They are transferred

The next section is naming formulas and determining the correct formula for the name. Use the flowcharts and your common ion list to do this.

Select the correct name for: SiO₂

silver dioxide

sodium iodide

calcium dinitrate

silicon dioxide

Select the correct name for: NaI

Select the correct name for: N₂O₅

Select the correct name for: Ca(NO₃)₂

Choose the formula for: sulfur hexafluoride

Choose the formula for: arsenic pentachloride

Choose the formula for: iron(II) chloride

Choose the formula for: magnesium sulfite

Questions 45 and 46 refer to the following equation:

__ Pb + __PbO₂ + __H₂SO₄--> __PbSO₄ + __ H₂O + energy

Which of the following coefficient sets matches with a balance equation?

1, 1, 2 --> 2, 2

1, 2, 3 --> 2, 1

2, 2, 1 --> 1, 2

Balance this baby! Which of the following coefficient sets matches with a balance equation?
Al + Pb(NO₃)₂ --> Al(NO₃)₃ + Pb

2, 3 --> 2, 3

2, 1 --> 1, 2

3, 2 --> 3, 2

The mole, molar mass and conversions

What is the molar mass of CO₂?

56 g/mol

44 g/mol

40 g/mol

28 g/mol

The number of seconds in an 8 hr school day can be calculated as:

8 hr X 60 min X 60 s

8 hr 60 min

60 s X 1 min X 1 hr

60 s 60 min

8 hr X 60 min X 60 s

1 hr 1 min

What is the molar mass of CF₄?

88 g/mol

76.0 g/mol

31.0 g/mol

What is the mass of 1 mole of (NH4)₂SO₄?

132.1 g/mol

150.1 g/mol

114.1 g/mol

How many liters are there in 5.3 moles of SO₂ gas?

119 L

0.24 L

64.1 L

What is the mass of 3.50 x 10²³ CF₄ molecules?

51.2 g

88 g

151 g

Questions 57 - 59 refer to the following equation:

2CH₃OH + 3O₂ --> 2CO₂ + 4H₂O

How many moles of O₂ are required to react with 5 moles of CH₃OH?

5 moles

6.7 moles

7.5 moles

If 4.3 g of CH₃OH reacts, how many grams of CO₂ will be formed?

8.9 g

6.5 g

5.9 g

If 4.3 g of CH₃OH reacts, how many moles of water will be formed?

0.13 moles

4.3 moles

0.26 moles

What is avogadro’s number?

6.02 x10²³

3 x10⁸

3.1415

6.63 x10^-34

40 Chem 1 final DL m

40 Chem 1 final DL m

Approximately how many elements exist in nature?

Which of the following is classified as an element?

Which of the following would NOT be classified as a mixture?

What is the mass of a 25Mg atom?

Isotopes of the same element have different:

What is the electron configuration of potassium?

What is the shape of a 3p atomic orbital?

How many neutrons are there in a 13C atom?

Two atoms with the same number of protons but a different number of neutrons are called:

How many protons are there in a 13C atom?

As a consequence of the discovery by Rutherford, which model of the atoms is now believed to be true?

Which electron configuration is correct for S2-?

How many valence electrons are there in a silicon atom?

How many electrons are there in a Cl- atom?

Which of the following elements has properties the most similiar to calcium?

As you move from left to right across the second period of the periodic table:

Which of the following element had the smallest atomic radius?

Electronegativity:

Which of the following element is in the halogen group?

In the chemical reaction in which carbon, hydrogen, and oxygen absorb heat and combine to form carbon dioxide and water, which of the following is considered to be a reactant?

Which of the following is true for all chemical reactions?

What is NOT true about ionic bonds?

Which substance is most likely ionic?

What is the charge on the strontium ion?

What is happening to the electrons in a covalent bond between two atoms?

Select the correct name for: SiO2

Select the correct name for: NaI

Select the correct name for: N2O5

Select the correct name for: Ca(NO3)2

Choose the formula for: sulfur hexafluoride

Choose the formula for: arsenic pentachloride

Choose the formula for: iron(II) chloride

Choose the formula for: magnesium sulfite

Which of the following coefficient sets matches with a balance equation?

Balance this baby! Which of the following coefficient sets matches with a balance equation?__Al + __ Pb(NO3)2 --> __Al(NO3)3 + __Pb

What is the molar mass of CO2?

The number of seconds in an 8 hr school day can be calculated as:

What is the molar mass of CF4?

What is the mass of 1 mole of (NH4)2SO4?

How many liters are there in 5.3 moles of SO2 gas?

What is the mass of 3.50 x 1023 CF4 molecules?

How many moles of O2 are required to react with 5 moles of CH3OH?

If 4.3 g of CH3OH reacts, how many grams of CO2 will be formed?

If 4.3 g of CH3OH reacts, how many moles of water will be formed?

What is avogadro’s number?

Approximately how many elements exist in nature?

Which of the following is classified as an element?

Which of the following would NOT be classified as a mixture?

What is the mass of a 25Mg atom?

Isotopes of the same element have different:

What is the electron configuration of potassium?

What is the shape of a 3p atomic orbital?

How many neutrons are there in a 13C atom?

Two atoms with the same number of protons but a different number of neutrons are called:

How many protons are there in a 13C atom?

As a consequence of the discovery by Rutherford, which model of the atoms is now believed to be true?

Which electron configuration is correct for S2-?

How many valence electrons are there in a silicon atom?

How many electrons are there in a Cl- atom?

Which of the following elements has properties the most similiar to calcium?

As you move from left to right across the second period of the periodic table:

Which of the following element had the smallest atomic radius?

Electronegativity:

Which of the following element is in the halogen group?

In the chemical reaction in which carbon, hydrogen, and oxygen absorb heat and combine to form carbon dioxide and water, which of the following is considered to be a reactant?

Which of the following is true for all chemical reactions?

What is NOT true about ionic bonds?

Which substance is most likely ionic?

What is the charge on the strontium ion?

What is happening to the electrons in a covalent bond between two atoms?

Select the correct name for: SiO2

Select the correct name for: NaI

Select the correct name for: N2O5

Select the correct name for: Ca(NO3)2

Choose the formula for: sulfur hexafluoride

Choose the formula for: arsenic pentachloride

Choose the formula for: iron(II) chloride

Choose the formula for: magnesium sulfite

What is the mass of a ²⁵Mg atom?

How many neutrons are there in a ¹³C atom?

How many protons are there in a ¹³C atom?

Which electron configuration is correct for S^2-?

How many electrons are there in a Cl^- atom?

Select the correct name for: SiO₂

Select the correct name for: N₂O₅

Select the correct name for: Ca(NO₃)₂

Balance this baby! Which of the following coefficient sets matches with a balance equation?
Al + Pb(NO₃)₂ --> Al(NO₃)₃ + Pb

What is the molar mass of CO₂?

What is the molar mass of CF₄?

What is the mass of 1 mole of (NH4)₂SO₄?

How many liters are there in 5.3 moles of SO₂ gas?

What is the mass of 3.50 x 10²³ CF₄ molecules?

How many moles of O₂ are required to react with 5 moles of CH₃OH?

If 4.3 g of CH₃OH reacts, how many grams of CO₂ will be formed?

If 4.3 g of CH₃OH reacts, how many moles of water will be formed?

What is the mass of a ²⁵Mg atom?

How many neutrons are there in a ¹³C atom?

How many protons are there in a ¹³C atom?

Which electron configuration is correct for S^2-?

How many electrons are there in a Cl^- atom?

Select the correct name for: SiO₂

Select the correct name for: N₂O₅

Select the correct name for: Ca(NO₃)₂

Balance this baby! Which of the following coefficient sets matches with a balance equation?
Al + Pb(NO₃)₂ --> Al(NO₃)₃ + Pb

What is the molar mass of CO₂?

What is the molar mass of CF₄?

What is the mass of 1 mole of (NH4)₂SO₄?

How many liters are there in 5.3 moles of SO₂ gas?

What is the mass of 3.50 x 10²³ CF₄ molecules?

How many moles of O₂ are required to react with 5 moles of CH₃OH?

If 4.3 g of CH₃OH reacts, how many grams of CO₂ will be formed?

If 4.3 g of CH₃OH reacts, how many moles of water will be formed?