Exam 2 Review Chemistry

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Exam 2 Review

Ch em 0485-001

Chapters 5, 6, 7, 8, 9, 11

What do balanced chemical equations represent?

What role does molar mass play between these two?

What would you be calculating the molar mass for if you look up the average atomic mass for each element and adding them all together? What would you do with any subscripts? What will this also be referred to as?

How do single-step conversions work?

What does molar mass equate to?

What is a column on the periodic table?

What is a nuclide?

What is an organic compound? What are they largely made of?

What happens to electrons in organic and ionic compounds?

What is an ionic compound? What are they made up of?

Are ions formed when elements share electrons? What does this mean?

What do binary compounds have?

What is the general format for binary covalents? Give an example.

How would you name a binary covalent?

What are the exceptions?

Give examples.

Which element comes first in covalent compounds?

Which element has all sorts of exceptions? What are they often named as?

Which ions are composed of a single atom? Give examples.

What is a polyatomic ion? Give examples.

What do main group elements always form?

Which ones are excluded?

What do transition and "other metals" form?

What is always written first when naming ionic compounds? Give an example of each: Main group metal, Transitional/other metal, and Poly-atomic ion.

What is the second element and what does it end in?

When naming compounds leading with transition or other metals, what do you add to the name? What does it indicate?

How would you name a compound with polyatomic ion? Give an example.

What does the roman numeral tell you if you have a metal that forms more than one cation?

What should names for compounds including the exception metal ions NOT include? Give examples.

When must a compound be bracketed inside with the inventory subscript outside? Give examples.

What are the ways to write ionic compounds?

What are hydrates?

What do binary acids have?

How would you name a hydrate? Give an example.

What would you start with when naming a binary acid?

What do you end with in binary acids? Give an example.

What do most bases contain?

How would you name the metal (cation) and OH in simple bases?

How would you write ammonia and its base?

Give examples of simple bases.

What do OXO acids contain?

Which part do you skip when naming OXO acids?

If the anion ends in "ite", what would you change the ending to?

The ending of an anion was changed to "ic" from which original ending?

You still end with this when naming OXO acids.

Give some examples of OXO acids.

How would you set up a proportion?

What would you do to solve for a proportion?

When are 2 step mol conversions used? What is this using?

How can you identify a 2 step mole problem?

When would you use a multi-step conversion? What do you need to use?

What is the molar mass of Hydrogen?

What is a derived quantity?

What must a measurement have?

What can be measured directly with tools, balances, thermometers, etc?

Describe the difference between intensive and extensive quantities.

Give an example of a single unit, ration unit, and complex unit.

Draw an atom with its nucleus (include charges) and key features

Describe what ions are and their forms.

What are the first 20 elements on the periodic table, in order.

What does it mean for an atom to be radioactive?

What is an isotope?

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Draw the symbol for carbon 12.

What is the atomic number?

What is the total of protons and neutrons in an element referred to as?

Which nuclide weighs the least?

How do you find the average atomic mass?

What is the average atomic mass?

What is a pure substance?

What is a formula unit?

What are the two kinds of bonds elements can form and what are their differences?

What is a chemical formula?

When would you use a molecular formula?

What are some physical properties?

What are some chemical properties?

What are the changes that matter can undergo? Give examples.

What do Groups 1A-8A consist of? Describe their reactivity, density, and any significance they may have.

What is atomic radius?

Do atoms get bigger or smaller down a group?

Do atoms get bigger or smaller across a row?

Describe 1st ionization energy.

What do elements in the same group have the same number of?

What loses electrons to form cations?

Do anions gain or lose electrons to form anions?

What do all all metals and nonmetals want to mirror?

Which element is considered to be the most reactive metal?

What is considered to be the most reactive nonmetal?

Explain Electronegativity.

What is the energy change that occurs when an electron is added to a gaseous atom?