Chemistry Final 2025 Prep

The ______ states that electrons are added to the lowest energy orbital first.

What does the triangle mean if it is above the reaction arrow?

____ are postively charged

Which of the following molecules has a bent shape?

Which one of the following statements about theories is incorrect?

The process by which new kinds of orbitals with equal energies are formed from a combo of orbitals is know as orbital ..

Fluorine is one of the special oxidation numbers and if bonded to another element ALWAYS has a number of _________.

The scale of a measuring instrument is ___________, that is accurately subdivided into measurement units.

Which country came up with the SI units?

Who came up with the law of octaves?

____________ is a measure of "correctness"

How many electrons are in the atom O2-?

The compounds on the right side of the chemical equation (after the arrow) and known as the ________.

Which part of the atom is found outside the nucleus in a "cloud"?

What indicated the precision of a measurement and helps scientists report measurements honestly?

Which type of sublevel can contain 10 electrons?

An atom becomes more stable by bonding with another atom if the resulting electron configuration is more like what?

Find the percent composition of NaCl.

Who state that whether an object acts like a particle or a wave depends on how it is observed?

Which of the following does NOT exist as a diatomic molecule?

Which orbital looks like a dumbbell on all three axes?

What is the oxidation number of Mg2+

190/78 Pt - How many protons are in the element?

In covalent binary bonding the Greek prefixes are used for the first element EXCEPT for which prefix?

Who said that the elements could be arranged in triads?

Which of the below would have 8 dots around them in their Lewis structure?

Who arranged the periodic table by atomic number?

How many molecules are in 5.00 grams of CaC2?

How many orbitals does a d sublevel contain?

Which elements discovery proved that Mendeleev's table was not crazy but brilliant?

The _________ uncertainty principle states that you cannot know the energy and position of a _______ at the same time.

Hydrogen has a _____ charge when bonded with nonmetals and a _____ charge when bonded with metals.

What property did Mendeleev use to organize his table?

Which part of the atom determines what type of element an atom is?

How many significant digits are in 0.0560 g?

In a chemical reaction the compounds on the left side of the equation (before the arrow) are the __________.

The azimuthal number is based onf the probability charts, which tells the electron orbitals' ______

How many sigma and pi bonds are there in a molecule of O2?

190/78 Pt - How many electrons are in the element?

Neutrons are _____ charged.

Which elements ALWAYS have a +2 charge?

A compound contains 80.00% C and 20.00% H, what is the empirical formula of the compound?

The outermost electrons are known as _________ electrons.

________ made his atomic model after experimenting with gas discharge tubes. He found a negatively charged particle...

What is the oxidation number of Br2?

Which of the differences in electronegativity would most likely represent a bond that is the most ionic?

Which of the following shapes is always polar if the central atom is different from the outside atoms?

The (l) in chemical equations stands for what?

Who coined the term element?

In equations the (aq) stands for what?

The word hydrate at the end of a name with greek prefixes (ex heptahydrate) is referring to ______.

What part of the atom effects the stability of the nucleus?

An s orbital is shaped like a ______.

___________ bonding occurs when atoms share electrons

A fraction equal to 1 that contains both the original unit and its equivalent value in a new unit is called a(n)?

_________ states that all orbitals recieve one electrons with the same spin before they begin to pair up.

The magnetic spin (ms) number could be which of the following numbers?

Which type of elements have properties of both metals and nonmetals?

190/78 Pt - The number 78 is the __________.

Which types of elemets typically have positive oxidation numbers?

Which type of bonds are named with Greek prefixes?

The (s) in chemical equations means that the compound is _________.

An orderly arrangement of ions in a 3D pattern within a compound is called a(n)

How many sigma and pi bonds are there in a molecule of N2?

Which of the following is NOT a normal property of ionic compounds?

Why do you need to know this stuff?

Which person discovered the neutron by observing neutral particles radiating from a sample hit with alpha particles?

What is found in the nucleus?

A cation has a/the _________ atomic radius than/as its parent element.

_____________ measure how close together measurements are to each other.

A(n) _________ system of measurement is any system of measurement based on a decimal scale.

What type of bond would you expect in a compound of bromine and sodium?

The law of ___________ states that matter cannot be created or destroyed

Who used spectroscopy to determine the energy level of electrons in different atoms?

The __________ mass tells how many grams of a substance are in one mole of that same substance.

Who believed matter was continuous and could be broken down forever?

The principle energy level measures the ___________ of the electrons.

What type of bond forms as a result of orbitals overlapping end to end?

A(n) _________ formula tells what elements are present and gives the simplest whole -number ratio of atoms

What is not true regarding models?

Atoms with a different number of neutrons are known as ___________.

Oxygen typically has an oxidation number of what?

Mg2+ is a _________.

Which part of the atom is negatively charged?

_____________ electrons are the outermost electrons and help determine how atoms bond.

When no single Lewis structure can display the distribution of electrons, the display of an intermediate character is ..

190/78 Pt - The number 190 is the _______.

Which one of the below is NOT an example of matter?

Which elements ALWAYS have a +1 charge?

The ___________ states that no two electrons can have the same 4 quantum numbers.

In which periodic trend are the noble gases excluded?

What type of formula best represents the bonds and shape of a molecule?

Which sublevel looks like a crazy 4 leaf clover in all directions?

Which of the following is the correct value for Avogadro's number?

What is the molar mass of urea (NH2CONH2)

Which of the below has the highest energy?

The invention of the _________ by Volta opened the door to many new experiments and led to more discoveries about atoms

When you see a chemical listed above the reaction arrow, it tells you that the chemical is a ____ and ____ the reaction

Which of the following compounds is polar?

190/78 Pt - How many neutrons are in the element?

Which princple says that the ratio elements in a compound is constant for every particle in that compound?

How many atoms are in 3.00 grams of copper?

The electron-sea theory accounts for all of the following characteristics of metals except...