According to the map, where did de Soto’s exploration of America begin?
(1 point)
Responses
Georgia
Georgia
Florida
Florida
South Carolina
South Carolina
Alabama
37 answers
Florida
Students conducted experiments to collect data on 4 unknown elements. Using the data table below with the information on each unknown element, which element is LEAST likely to be metallic?
Responses
A
A
B
B
C
C
D
Responses
A
A
B
B
C
C
D
C
The main-group elements are the forty-four elements that occupy groups 1A-VIIIA of the periodic table. Main-group elements are important because of their high natural abundance both in the Earth's crust and in the human body and are commercially valuable. Review the families containing main group elements and locate families IVA - VIIA. When forming chemical compounds, these four families have commonalities. Explain using as many answer choices that would apply.
Responses
As nonmetals, they have high electron affinities.
As nonmetals, they have high electron affinities.
They gain or share electrons when they react with other elements.
They gain or share electrons when they react with other elements.
When forming compounds they become positive ions.
When forming compounds they become positive ions.
When forming compounds, they obey the octet rule to have eight outer electrons.
When forming compounds, they obey the octet rule to have eight outer electrons.
These elements form covalent bonds when combining with metals.
Responses
As nonmetals, they have high electron affinities.
As nonmetals, they have high electron affinities.
They gain or share electrons when they react with other elements.
They gain or share electrons when they react with other elements.
When forming compounds they become positive ions.
When forming compounds they become positive ions.
When forming compounds, they obey the octet rule to have eight outer electrons.
When forming compounds, they obey the octet rule to have eight outer electrons.
These elements form covalent bonds when combining with metals.
The main group elements in families IVA - VIIA have the following commonalities when forming chemical compounds:
- They gain or share electrons when they react with other elements.
- When forming compounds, they obey the octet rule to have eight outer electrons.
- These elements form covalent bonds when combining with metals.
Note: The statement "As nonmetals, they have high electron affinities" is not applicable to all the elements in these families, as there are elements like carbon (C) and silicon (Si) that are classified as nonmetals but do not necessarily have high electron affinities.
- They gain or share electrons when they react with other elements.
- When forming compounds, they obey the octet rule to have eight outer electrons.
- These elements form covalent bonds when combining with metals.
Note: The statement "As nonmetals, they have high electron affinities" is not applicable to all the elements in these families, as there are elements like carbon (C) and silicon (Si) that are classified as nonmetals but do not necessarily have high electron affinities.
Sodium chloride, better known as table salt, is an ionic compound. Which conclusion would best be drawn from this information?
Responses
Sodium chloride is very flexible at room temperature.
Sodium chloride is very flexible at room temperature.
Sodium chloride will not dissolve in water.
Sodium chloride will not dissolve in water.
Sodium chloride has a high melting point.
Sodium chloride has a high melting point.
Sodium chloride is a liquid at room temperature.
Responses
Sodium chloride is very flexible at room temperature.
Sodium chloride is very flexible at room temperature.
Sodium chloride will not dissolve in water.
Sodium chloride will not dissolve in water.
Sodium chloride has a high melting point.
Sodium chloride has a high melting point.
Sodium chloride is a liquid at room temperature.
Sodium chloride has a high melting point.
You are studying the differences between ionic and covalent compounds. After studying the properties of each type of compound, your teacher has provided this table and asked you to (1) identify the ionic compound(s) and explain your choice(s).
Responses
Compounds A and D because they have relatively high melting points.
Compounds A and D because they have relatively high melting points.
Compound B because it has a very high melting point.
Compound B because it has a very high melting point.
Compounds A, B, and C because they are solid at room temperature.
Compounds A, B, and C because they are solid at room temperature.
Compounds A, B and C because they are soluble in water.
Compounds A, B and C because they are soluble in water.
Compounds A and D because the conduct electricity in aqueous solutions.
Responses
Compounds A and D because they have relatively high melting points.
Compounds A and D because they have relatively high melting points.
Compound B because it has a very high melting point.
Compound B because it has a very high melting point.
Compounds A, B, and C because they are solid at room temperature.
Compounds A, B, and C because they are solid at room temperature.
Compounds A, B and C because they are soluble in water.
Compounds A, B and C because they are soluble in water.
Compounds A and D because the conduct electricity in aqueous solutions.
Compounds A and D because they have relatively high melting points.
its multiple choice
I apologize for the confusion. The correct choice is:
Compounds A and D because they have relatively high melting points.
Compounds A and D because they have relatively high melting points.
thanks bro
You're welcome! If you have any more questions, feel free to ask. I'm here to help!
Which statement about covalent bonds is true?
Responses
Covalent bonds are generally stronger than ionic bonds because they form full oppositely charged particles.
Covalent bonds are generally stronger than ionic bonds because they form full oppositely charged particles.
Covalent bonds are generally weaker than ionic bonds because they form full oppositely charged particles.
Covalent bonds are generally weaker than ionic bonds because they form full oppositely charged particles.
Covalent bonds are generally weaker than ionic bonds because they overlap electrons to fill their outer shell.
Covalent bonds are generally weaker than ionic bonds because they overlap electrons to fill their outer shell.
Covalent bonds are generally stronger than ionic bonds because they overlap electrons to fill their outer shell.
Responses
Covalent bonds are generally stronger than ionic bonds because they form full oppositely charged particles.
Covalent bonds are generally stronger than ionic bonds because they form full oppositely charged particles.
Covalent bonds are generally weaker than ionic bonds because they form full oppositely charged particles.
Covalent bonds are generally weaker than ionic bonds because they form full oppositely charged particles.
Covalent bonds are generally weaker than ionic bonds because they overlap electrons to fill their outer shell.
Covalent bonds are generally weaker than ionic bonds because they overlap electrons to fill their outer shell.
Covalent bonds are generally stronger than ionic bonds because they overlap electrons to fill their outer shell.
Covalent bonds are generally weaker than ionic bonds because they overlap electrons to fill their outer shell.
he formation of lithium fluoride (seen here) is due to
Responses
the addition of an outer (higher) energy level in the fluoride ion.
the addition of an outer (higher) energy level in the fluoride ion.
increased stability in the completion of fluorine's outer shell.
increased stability in the completion of fluorine's outer shell.
decreased attraction between the lithium and fluoride ions.
decreased attraction between the lithium and fluoride ions.
a stronger pull by the lithium atom on its valence electron.
Responses
the addition of an outer (higher) energy level in the fluoride ion.
the addition of an outer (higher) energy level in the fluoride ion.
increased stability in the completion of fluorine's outer shell.
increased stability in the completion of fluorine's outer shell.
decreased attraction between the lithium and fluoride ions.
decreased attraction between the lithium and fluoride ions.
a stronger pull by the lithium atom on its valence electron.
increased stability in the completion of fluorine's outer shell.
Identify which bond type (ionic or covalent) is present in each of the following compounds:
NaCL
CO2
CaO
Al2O3
CH4
NH3
NaCL
CO2
CaO
Al2O3
CH4
NH3
NaCl - Ionic bond
CO2 - Covalent bond
CaO - Ionic bond
Al2O3 - Ionic bond
CH4 - Covalent bond
NH3 - Covalent bond
CO2 - Covalent bond
CaO - Ionic bond
Al2O3 - Ionic bond
CH4 - Covalent bond
NH3 - Covalent bond
Which elements will bond ionically with barium such that the formula would be written as BaX2
Responses
Oxygen and Sulfur
Oxygen and Sulfur
Chlorine, Iodine, and Fluorine
Chlorine, Iodine, and Fluorine
Hydrogen, Bromine and Aluminum
Hydrogen, Bromine and Aluminum
Nitrogen, Chlorine, and Sodium
Responses
Oxygen and Sulfur
Oxygen and Sulfur
Chlorine, Iodine, and Fluorine
Chlorine, Iodine, and Fluorine
Hydrogen, Bromine and Aluminum
Hydrogen, Bromine and Aluminum
Nitrogen, Chlorine, and Sodium
Oxygen and Sulfur
Which combination of elements below will bond ionically and in the same ratio as lithium when it bonds to sulfur?
Responses
sodium and oxygen
sodium and oxygen
carbon and oxygen
carbon and oxygen
calcium and nitrogen
calcium and nitrogen
aluminum and chlorine
aluminum and chlorine
Responses
sodium and oxygen
sodium and oxygen
carbon and oxygen
carbon and oxygen
calcium and nitrogen
calcium and nitrogen
aluminum and chlorine
aluminum and chlorine
Aluminum and chlorine
What is the chemical formula for aluminum fluoride?
Responses
AlF
AlF
AlF3
AlF, 3
Al3F
Al, 3, F
AlFl3
AlFl, 3
Responses
AlF
AlF
AlF3
AlF, 3
Al3F
Al, 3, F
AlFl3
AlFl, 3
AlF3
The chemical formula for sodium fluoride is
Responses
NaF2
NaF, 2
Na7F
Na, 7, F
NaF7
NaF, 7
NaF
Responses
NaF2
NaF, 2
Na7F
Na, 7, F
NaF7
NaF, 7
NaF
NaF
NH3 is nitrogen trihydride (ammonia) and BF3 is boron trifluoride. What is the name for AlCl3 and why?
Responses
Aluminum trichloride - It has the prefix "tri-" since it has the same ratio as the other compounds.
Aluminum trichloride - It has the prefix "tri-" since it has the same ratio as the other compounds.
Aluminum chloride - It does not have the prefix "tri-" since it is ionic.
Aluminum chloride - It does not have the prefix "tri-" since it is ionic.
Aluminum chloride - Ionic compounds do not get a prefix on the first name if there is only one of that element.
Aluminum chloride - Ionic compounds do not get a prefix on the first name if there is only one of that element.
Monoaluminum trichloride - There is only one aluminum and it needs the prefix "mono-".
Responses
Aluminum trichloride - It has the prefix "tri-" since it has the same ratio as the other compounds.
Aluminum trichloride - It has the prefix "tri-" since it has the same ratio as the other compounds.
Aluminum chloride - It does not have the prefix "tri-" since it is ionic.
Aluminum chloride - It does not have the prefix "tri-" since it is ionic.
Aluminum chloride - Ionic compounds do not get a prefix on the first name if there is only one of that element.
Aluminum chloride - Ionic compounds do not get a prefix on the first name if there is only one of that element.
Monoaluminum trichloride - There is only one aluminum and it needs the prefix "mono-".
Aluminum chloride - Ionic compounds do not get a prefix on the first name if there is only one of that element.
Which formulas and their respective names DO NOT match?
I) BaO barium hydroxide
II) CCl4 carbon tetrachloride
III) N2O4 dinitrogen tetroxide
IV) HF monohydrogen monofluoride
Responses
I and II
I and II
II and III
II and III
I and IV
I and IV
I, III and IV
I) BaO barium hydroxide
II) CCl4 carbon tetrachloride
III) N2O4 dinitrogen tetroxide
IV) HF monohydrogen monofluoride
Responses
I and II
I and II
II and III
II and III
I and IV
I and IV
I, III and IV
I and II
Using IUPAC nomenclature, give the name of BH3 and AlH3 and elaborate why that name is correct.
Responses
boron trihydride & aluminum trihydride - both molecules combine two non-metals and form covalent bonds.
boron trihydride & aluminum trihydride - both molecules combine two non-metals and form covalent bonds.
boron hydride & aluminum hydride - both compounds combine a main group metal and a non-metal to form ionic bonds.
boron hydride & aluminum hydride - both compounds combine a main group metal and a non-metal to form ionic bonds.
boron hydride - boron is a main group metal and hydrogen is a non-metal and they form ionic bonds.
aluminum trihydride - aluminum and hydrogen are both non-metals and form covalent bonds.
boron hydride - boron is a main group metal and hydrogen is a non-metal and they form ionic bonds., , aluminum trihydride - aluminum and hydrogen are both non-metals and form covalent bonds.
boron trihydride - boron and hydrogen are both non-metals and form covalent bonds.
aluminum hydride - aluminum is a main group metal and hydrogen is a non-metal and they form ionic bonds.
Responses
boron trihydride & aluminum trihydride - both molecules combine two non-metals and form covalent bonds.
boron trihydride & aluminum trihydride - both molecules combine two non-metals and form covalent bonds.
boron hydride & aluminum hydride - both compounds combine a main group metal and a non-metal to form ionic bonds.
boron hydride & aluminum hydride - both compounds combine a main group metal and a non-metal to form ionic bonds.
boron hydride - boron is a main group metal and hydrogen is a non-metal and they form ionic bonds.
aluminum trihydride - aluminum and hydrogen are both non-metals and form covalent bonds.
boron hydride - boron is a main group metal and hydrogen is a non-metal and they form ionic bonds., , aluminum trihydride - aluminum and hydrogen are both non-metals and form covalent bonds.
boron trihydride - boron and hydrogen are both non-metals and form covalent bonds.
aluminum hydride - aluminum is a main group metal and hydrogen is a non-metal and they form ionic bonds.
boron trihydride - boron and hydrogen are both non-metals and form covalent bonds.
aluminum hydride - aluminum is a main group metal and hydrogen is a non-metal and they form ionic bonds.
This naming is correct because BH3 (boron trihydride) is a covalent compound composed of the non-metal boron and hydrogen, which form covalent bonds. AlH3 (aluminum hydride) is an ionic compound composed of the main group metal aluminum and the non-metal hydrogen, which form ionic bonds. The names accurately describe the composition and bonding types of these compounds according to IUPAC nomenclature.
aluminum hydride - aluminum is a main group metal and hydrogen is a non-metal and they form ionic bonds.
This naming is correct because BH3 (boron trihydride) is a covalent compound composed of the non-metal boron and hydrogen, which form covalent bonds. AlH3 (aluminum hydride) is an ionic compound composed of the main group metal aluminum and the non-metal hydrogen, which form ionic bonds. The names accurately describe the composition and bonding types of these compounds according to IUPAC nomenclature.
Determine the correct name for the compound, Mg3N2.
Responses
Magnesium nitride
Magnesium nitride
Trimagnesium dinitride
Trimagnesium dinitride
Magnesium (II) nitride
Magnesium (II) nitride
Manganese nitride
Responses
Magnesium nitride
Magnesium nitride
Trimagnesium dinitride
Trimagnesium dinitride
Magnesium (II) nitride
Magnesium (II) nitride
Manganese nitride
Magnesium nitride
Excerpt from novel My Forbidden Face
Exposition – Set
the scene and
introduce your
character (2–3
sentences)
Remember: You are
the character. Use
first person ("I") to
speak as the
character.
Exposition – Set
the scene and
introduce your
character (2–3
sentences)
Remember: You are
the character. Use
first person ("I") to
speak as the
character.
I cannot generate a specific excerpt from the novel "My Forbidden Face" as it would require access to the text. However, here's an example of an exposition for a character in first person:
I was born and raised in a war-torn city, where the sound of explosions and gunfire was an everyday occurrence. My name is Amina, and I grew up in a small apartment with my parents and siblings, constantly fearing for our lives. The streets were filled with chaos and uncertainty, and I longed for a life of peace and freedom.
I was born and raised in a war-torn city, where the sound of explosions and gunfire was an everyday occurrence. My name is Amina, and I grew up in a small apartment with my parents and siblings, constantly fearing for our lives. The streets were filled with chaos and uncertainty, and I longed for a life of peace and freedom.
1 answer