FINAL Flashcards
What does O.I.L R.I.G mean?
Oxidation is a Gain of electrons
Reduction is a Loss of electrons
What is an oxidation number?
the charge on an atom in a compound
What is the oxidizing agent in a compound?
the reducing atom because it cause the other agent to become oxidized
What is the reducing agent in a compound?
The atom that was oxidized because it caused the other atom to reduce
what is a hypothesis?
a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
What is a scientific theory?
is a series of statements about the causal elements for observed phenomena. A critical component of a scientific theory is that it provides explanations and predictions that can be tested.
What is a Homogeneous mixture?
A mixture which has uniform composition and properties throughout. For example, air is a homogeneous mixture of gases. A teaspoonful of table salt stirred into a glass of water also makes a homogeneous mixture.
What is a Heterogeneous mixture?
A heterogeneous mixture is made of different substances that remain physically separate. Heterogeneous mixtures always have more than one phase (regions with uniform composition and properties). A mixture of sand and sugar is a heterogeneous mixture.
What is a pure compound?
A pure compound is a substance composed of a specific molecule or formula unit composed of 2 or more elements that cannot be broken down physically.
Ionic Compound
In chemistry, an ionic compound is a chemical compound in which ions are held together in a structure by ionic bonds. The positively charged ions are called cations and the negatively charged ions are called anions.
What is a chemical change?
Chemical change is any change that results in the formation of new chemical substances. At the molecular level, chemical change involves making or breaking of bonds between atoms. These changes are chemical: iron rusting (iron oxide forms)
What is the law of definite proportions?
a chemical compound always contains exactly the same proportion of elements by mass.
An ion contains 17 protons, 20 neutrons, and 18
electrons. Which of the following is the correct
nuclear symbol for this ion?
37 -
17Cl
How do you pass tests during finals?
Study and read the question all the way
Is a cm bigger than a mm?
K.ILL
D.ebbies
C.razy
M.other
So yes!
How can you determine how close in similarity an element is?
Base on how close they are together and if they are in the same column
What is an ionic compound?
A compound formed by an anion and cation (generally metals and non metals)
What is a binary compound?
A binary compound is a chemical compound that contains exactly two different elements. Examples of binary ionic compounds include calcium chloride (CaCl2), sodium fluoride (NaF), and magnesium oxide (MgO), whilst examples of a binary covalent compounds include water (H2O), and sulfur hexafluoride (SF6).
