Quantitative Chemistry
Which element has the smallest molar mass on the periodic table?
What is Hydrogen
What is the symbol for sodium?
What is Na?
What type of reaction occurs when vinegar reacts with baking soda?
What is acid‑base reaction (neutralization also accepted)
What is the forth state of matter?
What is plasma
The only letter not found in the periodic table.
What is J.
A reaction should produce 20 g of product, but only 15 g is obtained. What is the percent yield?
What is 75%?
Which element is used in pencils as graphite?
What is Carbon
Predict the products when calcium reacts with water (No need to balance whatsoever)
What is Hydrogen gas + calcium hydroxide (Ca(OH)₂)
What is the only halogen that is liquid at room temperature?
What is bromine
How many Carbons in benzene? (hint: it looks like a ring)
What is 6?
How many particles are in one mole of a substance? (3 sig figs)
What is 6.02 * 10^23
What is the atomic number of Potassium?
What is 19
Balance the combustion of benzene: C6H6 + O2 -> CO2 + H2O
What is 2C6H6 + 15O2 -> 12CO2 + 6H2O
The process of transition of state from a gas to a liquid
What is condensation
The compound better known as baking soda, used in cooking and cleaning.
What is Sodium Bicarbonate (NaHCO3).
A solution has 0.01 M H⁺ and 0.01 M OH⁻. What is the pH?
What is pH 7 (neutral)?
Why are noble gases generally unreactive?
What is a full outer electron shell?
The reaction type when iron rusts by reacting with oxygen and water.
What is redox (oxidation‑reduction)?
The state of matter where particles spread fastest due to high kinetic energy.
What is diffusion in gases?
The compound is found in abundance on Neptune and Uranus, giving them a blue colour.
What is methane (CH4)?
A gas sample has a pressure of 1 atm, a volume of 22.4 L, and a temperature of 273 K. Using the Ideal Gas Law (hint: PV = nRT, R = 0.0821 L·atm/(mol·K)), how many moles of gas are present?
What is 1 mole?
Which element is liquid at room temperature and used in thermometers?
What is mercury?
Why do alkali metals and halogens react so vigorously?
What is the vigorous reaction caused by easy electron loss from alkali metals and strong electron gain by halogens?
Rank the states in increasing order of how fast the reactants in that state will react: s, aq, l, g
What is s < l < aq < g? (solid<liquid<aqueous<gas)
The hydrogen isotope that has one proton and one neutron, sometimes called “heavy hydrogen.”
What is deuterium?