Formulas and Equations
What type of compound always has H+ as a cation?
Acids
What type of reaction involves multiple reactants forming a single product?
Synthesis
What is the molar mass of carbonic acid? (must include correct units)
62.03 g/mol
In the equation q=mCΔT, what does ΔT represent?
Change in temperature
What is the only English letter that does not appear on the periodic table?
J
What is the formula of perchloric acid?
HClO4
What type of reaction involves an element replacing of the ions in an ionic compound?
Single displacement
What is the volume of 1 mole of any gas at standard temperature and pressure?
22.4 L
What term describes processes where heat is released from a SYSTEM into the SURROUNDINGS?
Exothermic
What type of rock can form from heat and pressure acting on existing rock?
Metamorphic
Which of the following types of compound typically has the lowest melting and boiling points: molecular, ionic, or acids?
Molecular Compounds
Combustion is a high energy reaction between an organic molecule and what element?
Oxygen
What conversion factor is used to convert from moles of one substance to moles of another substance in a balanced chemical equation?
Mole Ratio
Substance A has a C of 1.03 J/g°C. Substance B has a C of 0.92 J/g°C. Which substance is a better insulator?
Substance A
Which planet in the solar system has the longest day?
Venus
What is the name of the following compound:
SF6
Sulfur hexafluoride
From left to right, what are the correct coefficients to balance the following equation?
____C6H6 (ℓ) + ____ O2 (g) → ____ H2O(ℓ) + ____CO2 (g)
2, 15, 6, 12
2 Cu + O2 → 2 CuO
How many moles of copper (II) oxide are produced if 2.32 mol of oxygen gas are reacted with plenty of copper?
4.64 mol CuO
How much energy is needed to raise 22g of lead from 21°C to 100°C? (The specific heat of lead is 0.129 J/g°C)
224.2 J
What field of science is the study of insects?
Entomology
Write a balanced equation for the following:
Lithium reacts with oxygen gas to form lithium oxide.
4 Li + O2 --> 2 Li2O
What must be true for a double displacement reaction to occur?
Formation of precipitate/solid
C7H16 + 11 O2 → 7 CO2 + 8 H2O
What volume of carbon dioxide is formed if 12 g of heptane (C7H16) is burned with excess oxygen? (Assume standard temperature and pressure)
18.77 L CO2
Calculate the specific heat capacity of a piece of metal if 225.00 grams of the metal absorbs 7000 joules, and its temperature rises from 25°C to 120°C.
0.327 J/g°C
Which organ in the human body produces insulin?
Pancreas