Rio Salado chem 130 final EXAM Questions & Answers | 100% Verified
solutions | 2025\2026 Latest!!
1. Endothermic Absorbs heat, requires hear for the reaction
2. Law of Conserva- Matter is not created nor destroyed in any chemical or physical change, ergo total
tion of Mass amount of matter in reactants = total amount of matter in products
3. mole-mole fac- a conversion factor that relates the number of moles of two compounds derived
tors from the coefficients in an equation
4. Limiting reactant the substance that controls the quantity of product that can form in a chemical
reaction
5. Excess reactant a reactant that remains after a chemical reaction stops
6. limiting reactant The one that runs out first, smaller amount of product when doing a mole-mole
factoring
7. theoretical yield the amount of product that can be made in a chemical reaction based on the
amount of limiting reactant
8. actual yield the measured amount of a product obtained from a reaction
9. Joule(J) SI unit of energy
10. Kilojoules (kJ) Used to show the energy change in a reaction
11. heat of reaction The amount of heat absorbed or released in a reaction that takes place at constant
pressure. Also called the "enthalpy of reaction"
12. Exothermic reac- Energy of the products is lower than that of the reactants. Heat in product
tion (exo means
out)
13. Energy of the products is higher than that of the reactants heat in reactants
, Rio Salado chem 130 final EXAM Questions & Answers | 100% Verified
solutions | 2025\2026 Latest!!
Endothermic re-
action (endo
means within)
14. double bond A chemical bond formed when atoms share two pairs of electrons
15. triple bound A chemical bond formed when atoms share three pairs of electrons
16. Atoms most like- Carbon, oxygen, nitrogen, and sulfur
ly to form triple
bounds
17. Atoms that do Hydrogen and halogens
not form double
or triple bounds
18. resonance struc- a structure that occurs when it is possible to draw two or more valid electron dot
ture structures that have the same number of electron pairs for a molecule or ion
19. VSEPR theory states that repulsion between the sets of valence-level electrons surrounding an
atom causes these sets to be oriented as far apart as possible
20. Linear shaped describes the arrangement of three or more atoms placed at an expected bond
molecule angle of 180 degrees
21. trigonal planar 120 degrees
22. bent shape The shape of a molecule with two bonded atoms and one lone pair or two lone
pairs
23. Tetrahedral the shape of a molecule with four bonded atoms (109 degrees)wedge-dash
notation
24.
solutions | 2025\2026 Latest!!
1. Endothermic Absorbs heat, requires hear for the reaction
2. Law of Conserva- Matter is not created nor destroyed in any chemical or physical change, ergo total
tion of Mass amount of matter in reactants = total amount of matter in products
3. mole-mole fac- a conversion factor that relates the number of moles of two compounds derived
tors from the coefficients in an equation
4. Limiting reactant the substance that controls the quantity of product that can form in a chemical
reaction
5. Excess reactant a reactant that remains after a chemical reaction stops
6. limiting reactant The one that runs out first, smaller amount of product when doing a mole-mole
factoring
7. theoretical yield the amount of product that can be made in a chemical reaction based on the
amount of limiting reactant
8. actual yield the measured amount of a product obtained from a reaction
9. Joule(J) SI unit of energy
10. Kilojoules (kJ) Used to show the energy change in a reaction
11. heat of reaction The amount of heat absorbed or released in a reaction that takes place at constant
pressure. Also called the "enthalpy of reaction"
12. Exothermic reac- Energy of the products is lower than that of the reactants. Heat in product
tion (exo means
out)
13. Energy of the products is higher than that of the reactants heat in reactants
, Rio Salado chem 130 final EXAM Questions & Answers | 100% Verified
solutions | 2025\2026 Latest!!
Endothermic re-
action (endo
means within)
14. double bond A chemical bond formed when atoms share two pairs of electrons
15. triple bound A chemical bond formed when atoms share three pairs of electrons
16. Atoms most like- Carbon, oxygen, nitrogen, and sulfur
ly to form triple
bounds
17. Atoms that do Hydrogen and halogens
not form double
or triple bounds
18. resonance struc- a structure that occurs when it is possible to draw two or more valid electron dot
ture structures that have the same number of electron pairs for a molecule or ion
19. VSEPR theory states that repulsion between the sets of valence-level electrons surrounding an
atom causes these sets to be oriented as far apart as possible
20. Linear shaped describes the arrangement of three or more atoms placed at an expected bond
molecule angle of 180 degrees
21. trigonal planar 120 degrees
22. bent shape The shape of a molecule with two bonded atoms and one lone pair or two lone
pairs
23. Tetrahedral the shape of a molecule with four bonded atoms (109 degrees)wedge-dash
notation
24.
