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Causes of Change
Covalent Compounds
Ions and Ionic Compounds
The Periodic table
Matter and Energy
100
A: heat.
Q: One of the simplest ways energy is transferred?
100
A: When two atoms share the same electron.
Q: What is a covalent bond?
100
A: An atom/molecule that has gained or lost an electron. Cation and Anion.
Q: What is an ion and what are they called with positive/negative charges?
100
A: periodic law.
Q: What law states that when elements are arranged to their atomic numbers, elements with similar properties appear at regular intervals?
100
A: Chemical changes produce new substances.
Q: What is the difference between chemical and physical changes?
200
A: thermodynamics
Q: Science that examines various processes and the energy changes that accompany the processes?
200
A: bond length.
Q: The distance between two bonded atoms at their minimum potential energy is known as?
200
A: lattice energy.
Q: What is the energy that is released from forming ionic bonds called?
200
A: Columns and Rows.
Q: What are the vertical and horizontal rows of the table called?
200
A: Scientific Method?
Q: To study matter and energy, what are the specific procedures called for conducting research?
300
A: measures the enthalpy changes of a combustion reaction.
Q: What does a bomb calorimeter do?
300
A: Bond energy.
Q: What is the energy called required to break a bond?
300
A: high melting/boiling points, hard and brittle, conducts electricity when dissolved or melted.
Q: What properties help identify an ionic compound?
300
A: Alkali metals.
Q: What are the elements in Group 1 also called?
300
A: how close a measurement is to the true or actual value.
Q: What is Accuracy?
400
A: Spontaneity.
Q: What does the ΔG determine?
400
A: to determine the shape of a molecule.
Q: What is the use of the VSEPR theory?
400
A: polyatomic ion.
Q: What is a charged group of two or more bonded atoms that can be considered a single ion?
400
A: Noble Gases.
Q: What are the elements in Group 18 also called?
400
A: 4
Q: How many sig figs are in 49.05
500
A: The entropy reflects on a system’s disorder.
Q: What does ΔS products- ΔS reactant reflect?
500
A: valence electrons.
Q: What are the electrons in the outermost energy level of an atom?
500
A: Fe2(CrO4)3
Q: What is the formula of iron (III) chromate?
500
A: Because it only has 1 proton and electron, it behaves unlike any other element.
Q: Why is Hydrogen in a Class all by itself?
500
A: 220.4
Q: What is the sum of 3.95, 2.879, and 213.6 in sig figs?