Kelso High Chem 1 Credit redemption

Posljednje ažuriranje over 5 years ago

52 questions

These next two are analogies. Look for the relationship between the two terms given and extend that to the next term, choosing the term that best fits the same relationship.

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

Questions 57 - 59 refer to the following equation:

2CH₃OH + 3O₂ --> 2CO₂ + 4H₂O

Kelso High Chem 1 Credit redemption

Posljednje ažuriranje over 5 years ago

52 questions

Approximately how many elements exist in nature?

100

10,000

1,000

Which of the following is classified as an element?

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?

heat

oxygen

water

carbon dioxide

Which of the following is true for all chemical reactions?

The total mass of the reactants increases

Water is given off

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 diameter of a carbon atom is 0.000 000 000 154 m. What is this number expressed in scientific notation?

1.54 x 10^-12m

1.54 x 10¹²m

1.54 x 10^-10m

1.54 x 10¹⁰m

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

8 hr X 60 min X 60 s

1 hr 1 min

8 hr X 60 min X 60 s

8 hr 60 min

60 s X 1 min X 1 hr

60 s 60 min

1 s X 1 min X 8 hr

60 s 60 min

Which answer correctly identifies the number of protons, neutrons and electrons in the following atom - ¹²⁰Sn

120 protons, 50 electrons, and 70 neutrons

70 protons, 70 electrons, and 50 neutrons

50 protons, 50 electrons, and 70 neutrons

70 protons, 50 electrons, and 50 neutrons

Isotopes of the same element have different:

chemical behavior

atomic masses

positions on the periodic table

atomic numbers

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

yttrium

rubidium

germanium

strontium

What is the shape of a 3p atomic orbital?

a sphere

a bar

two perpendicular dumbbells

a dumbbell

What is the electron configuration of potassium?

1s²2s²2p¹⁰3s²3p³

1s²2s²3s²3p⁶3d¹

1s²2s²2p²3s²3p²4s¹

1s²2s²2p⁶3s²3p⁶4s¹

As a consequence of the discovery by Rutherford, which model of the atoms is 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-?

1s²2s²2p⁶3s²3p⁴

1s²2s²2p⁶3s²3p²

1s²2s²2p⁶3s²3p⁶

1s²2s²2p⁶

Which of the following element is in the halogen group?

none of these

potassium

calcium

copper

Which of the following element had the smallest atomic radius?

selenium

chlorine

sulfur

phosporus

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

the atomic radii increases

the atomic mass decreases

the ionization energy increases

the electron affinity decreases

Electronegativity:

Is generally higher for metals than for nonmetals

Generally increases as you move down a group

Is the electrical attraction of a negative ion to another negative ion

Generally increases from left to right across a period

How many valence electrons are there in a silicon atom?

What is NOT true about ionic bonds?

They are formed between metals and nonmetals

Held together by opposite charges

Formed by the transfer of an electron

Poor conductors when dissolved

Which substance is most likely ionic?

What is the charge on the strontium ion?

These next two are analogies. Look for the relationship between the two terms given and extend that to the next term, choosing the term that best fits the same relationship.

Pipe : water
Metal: _______

conductor

electricity

ionic bond

ions

House: lumber
Bond : __________

molecules

atoms

valence electrons

octet rule

The melting temperature of potassium chloride is relatively __________.

low

high

potassium chloride does not melt.

variable

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

They become excited to a higher energy level

They release light

They are shared.

They are transferred

Which of the following molecules contain at least one double bond?

CO₂

H₂O

CH₄

NH₃

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

Select the correct name for: BF₃

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: iodine tribromide

Choose the formula for: arsenic pentachloride

Choose the formula for: iron(II) chloride

Choose the formula for: magnesium sulfite

Choose the formula for: tetraphosphorus hexaoxide

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

2, 2, 4 --> 4, 4

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

2, 3 --> 2, 3

3, 2 --> 3, 2

2, 1 --> 1, 2

1, 1 --> 1, 1

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?

How many neutrons are there in a ¹³C atom?

What is the mass of a ²⁵Mg atom?

How many electrons are there in a ³⁵Cl^- atom?

What is the molar mass of CO₂?

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

How many molecules are there in 5.3 moles of H₂O?

3.2 x 10²⁴ molecules

95.4 molecules

8.8 x 10^-24molecules

0.29 molecules

What is the mass of 3.5 x 10²³ CF₄ molecules?

151 g

88 g

51.1 g

3.08 x 10²⁵ 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?

6.7 moles

3.3 moles

7.5 moles

5 moles

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

11.8 g

5.9 g

6.5 g

8.9 g

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

0.26 moles

4.3 moles

5 moles

0.13 moles

Kelso High Chem 1 Credit redemption

Kelso High Chem 1 Credit redemption

Approximately how many elements exist in nature?

Which of the following is classified as an element?

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?

The diameter of a carbon atom is 0.000 000 000 154 m. What is this number expressed in scientific notation?

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

Which answer correctly identifies the number of protons, neutrons and electrons in the following atom - 120Sn

Isotopes of the same element have different:

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

What is the shape of a 3p atomic orbital?

What is the electron configuration of potassium?

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

Which electron configuration is correct for S2-?

Which of the following element is in the halogen group?

Which of the following element had the smallest atomic radius?

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

Electronegativity:

How many valence electrons are there in a silicon atom?

What is NOT true about ionic bonds?

Which substance is most likely ionic?

What is the charge on the strontium ion?

Pipe : waterMetal: _______

House: lumberBond : __________

The melting temperature of potassium chloride is relatively __________.

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

Which of the following molecules contain at least one double bond?

Select the correct name for: SiO2

Select the correct name for: BF3

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: iodine tribromide

Choose the formula for: arsenic pentachloride

Choose the formula for: iron(II) chloride

Choose the formula for: magnesium sulfite

Choose the formula for: tetraphosphorus hexaoxide

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 + __P

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?

How many neutrons are there in a 13C atom?

What is the mass of a 25Mg atom?

How many electrons are there in a 35Cl- atom?

What is the molar mass of CO2?

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

How many molecules are there in 5.3 moles of H2O?

What is the mass of 3.5 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 much 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?

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?

The diameter of a carbon atom is 0.000 000 000 154 m. What is this number expressed in scientific notation?

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

Which answer correctly identifies the number of protons, neutrons and electrons in the following atom - 120Sn

Isotopes of the same element have different:

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

What is the shape of a 3p atomic orbital?

What is the electron configuration of potassium?

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

Which electron configuration is correct for S2-?

Which of the following element is in the halogen group?

Which of the following element had the smallest atomic radius?

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

Electronegativity:

How many valence electrons are there in a silicon atom?

What is NOT true about ionic bonds?

Which substance is most likely ionic?

What is the charge on the strontium ion?

Pipe : waterMetal: _______

House: lumberBond : __________

The melting temperature of potassium chloride is relatively __________.

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

Which of the following molecules contain at least one double bond?

Which answer correctly identifies the number of protons, neutrons and electrons in the following atom - ¹²⁰Sn

Which electron configuration is correct for S^2-?

Pipe : water
Metal: _______

House: lumber
Bond : __________

Select the correct name for: SiO₂

Select the correct name for: BF₃

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 + P

How many protons are there in a ¹³C atom?

How many neutrons are there in a ¹³C atom?

What is the mass of a ²⁵Mg atom?

How many electrons are there in a ³⁵Cl^- atom?

What is the molar mass of CO₂?

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

How many molecules are there in 5.3 moles of H₂O?

What is the mass of 3.5 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 much CO₂ will be formed?

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

Which answer correctly identifies the number of protons, neutrons and electrons in the following atom - ¹²⁰Sn

Which electron configuration is correct for S^2-?

Pipe : water
Metal: _______

House: lumber
Bond : __________

Select the correct name for: SiO₂

Select the correct name for: BF₃

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 + P

How many protons are there in a ¹³C atom?

How many neutrons are there in a ¹³C atom?

What is the mass of a ²⁵Mg atom?

How many electrons are there in a ³⁵Cl^- atom?

What is the molar mass of CO₂?

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

How many molecules are there in 5.3 moles of H₂O?

What is the mass of 3.5 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 much CO₂ will be formed?

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