Chemistry Edition

$300 $200 $100 $400 $500 Acids & BasesIonsSargent’schoiceBondingFormulasPeriodicTable Biology

$100 A: Elements are organized on the periodic table by atomic number which indicates the number of _____ in an atom.

$100 Q: What are protons?

$200 A: The family of elements that will lose 2e- to become stable.

$200 Q: What is the alkaline-earth metals family (column IIA)?

$300 A: Elements are organized into families (columns). Elements of the same family act similar chemically due to having the same number of _______.

$300 Q: What are valence electrons?

$400 A: An atom of oxygen (column VIA) has this many valence electrons.

$400 Q: What is six?

$500 A: The noble gases are stable due to being “full”, having ____ valence electrons. (Helium is an exception)

$500 Q: What is eight valence e-? (“octet”)

$100 A: The ratio of ions in a formula has to be such that the compound has no net _________.

$100 Q: What is charge?

$200 A: The formula of an ionic compound will always have at least one ________ element and at least one nonmetal element.

$200 Q: What is a metal?

$300 A: The formula of barium chloride. (Ba +2 and Cl - )

$300 Q: What is BaCl 2 ?

$400 A: This family of metals is located in the middle of the periodic table and their ion charges vary between +1 and +4. A # in ( ) follows the name of the metal in a compound name to tell you the charge of the metal ion. ex: Iron (II)

$400 Q: What are the transition metals?

$500 A: The formula for magnesium nitrate. A.Mg 3 N 2 B.MgNO 3 C.Mg(NO 3 ) 2 D.MgNO 2

$500 Q: What is letter C: Mg(NO 3 ) 2 ?

$100 A: Acids cause this change in litmus paper.

$100 Q: What is turn blue litmus paper pink?

$200 A: A solution that is blue when BTB is added must contain ______ ions.

$200 Q: What is hydroxide (OH-) ions? (BTB = blue if the solution is a base)

$300 A: Of soda (pH3) and vinegar (pH1), the solution that is the more concentrated acid.

$300 Q: What is vinegar?

$400 A: “Neutral” refers to a substance with pH7 (not acidic or basic). In labs 6.3 and 6.4 you saw that pure water and ________ are both neutral.

$400 Q: What are “salts” (or salt solutions)? (salt = any ionic compound that is a general m+/nm- combo like calcium fluoride, lithium sulfide…)

$500 A: If lemon juice is an acid, it must contain these ions.

$500 Q: What are hydrogen ions (H+)?

$100 A: Ions have a net charge because they have lost or gained _________.

$100 Q: What are electrons?

$200 A: The charge on a phosphorus ion. (Phosphorus is in column VA)

$200 Q: What is negative three (3-)? (column VA = 5 valence e-, needs to gain 3e-)

$300 A: All _______ elements form positive ions due to losing e- to be stable.

$300 Q: What are metal elements?

$400 A: The ions present in a solution if the solution has a pH of 12.

$400 Q: What are hydroxide ions?

$500 A: The number of electrons in a chloride ION.

$500 Q: What is 18? (chlorine atom has 17e- but will gain 1e- to be stable. +17 protons -18e- = -1 charged ion)

$100 A: The type of bond between the atoms in molecules, such as sugar, or between atoms of a polyatomic ion.

$100 Q: What is a covalent bond?

$200 A: The bond between particles in the compound calcium oxide.

$200 A: What is ionic bond?

$300 A: An ionic bond is formed when this event occurs.

$300 Q: What is the transfer of electrons? (m  nm)

$400 A: A water molecule has partial charges that allow it to attract many types of particles due to having this type of covalent bond. Hint: the e- are not shared equally

$400 Q: What is a polar covalent bond?

$500 A: In this type of bond e- are constantly transferred from atom to atom creating a shared “sea of electrons”. Hint: it exists between gold atoms in a gold ring or between aluminum atoms in aluminum foil…

$500 Q: What is a metallic bond?

$100 A: A polyatomic ion remains a group of atoms even when dissolved because the atoms are held together by this type of bond that doesn’t break during dissolving.

$100 Q: What is a covalent bond?

$200 A: Of a solution with pH 2 and a solution with pH 5, the one that has more H +.

$200 Q: What is pH 2?

$300 A: Since oil does not dissolve in water, oil must have this type of covalent bond.

$300 Q: What is a nonpolar covalent bond?

$400 A: When tested with litmus paper, detergent causes pink litmus to turn blue. Therefore, detergent must be this type of compound (solution).

$400 Q: What is a base (basic)?

$500 A: A very reactive nonmetal family (column VIIA).

$500 Q: What is the Halogens family?