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Navy Sailor Test Chemistry Flashcards
50 question-and-answer cards covering Chemistry as it is examined in Navy Sailor Test. 24 of them are printed below, taken from across the deck — no signup, no paywall on the preview.
24 sample cards from the Chemistry deck
Sampled from the end of the deck, so these are different cards from the ones shown on the syllabus page.
What is a chemical equation?
A symbolic representation of a chemical reaction showing reactants on the left and products on the right, separated by an arrow.
What does it mean to balance a chemical equation?
To adjust coefficients so the number of atoms of each element is equal on both the reactant and product sides, satisfying the law of conservation of mass.
In a chemical equation, what are reactants and products?
Reactants are the starting substances (left of the arrow); products are the substances formed (right of the arrow).
What do the state symbols (s), (l), (g), and (aq) mean in an equation?
(s) = solid, (l) = liquid, (g) = gas, (aq) = aqueous (dissolved in water).
What is a combination (synthesis) reaction?
A reaction in which two or more substances combine to form a single product (A + B → AB).
What is a decomposition reaction?
A reaction in which a single compound breaks down into two or more simpler substances (AB → A + B).
What is a single displacement (replacement) reaction?
A reaction in which a more reactive element replaces a less reactive element in a compound (A + BC → AC + B).
What is a double displacement reaction?
A reaction in which the ions of two compounds exchange places to form two new compounds (AB + CD → AD + CB).
What is a combustion reaction?
A reaction in which a substance reacts rapidly with oxygen to release heat and light, usually producing CO₂ and H₂O.
What is an oxidation-reduction (redox) reaction?
A reaction involving the transfer of electrons; oxidation is loss of electrons and reduction is gain of electrons.
State Boyle's Law.
At constant temperature, the volume of a fixed mass of gas is inversely proportional to its pressure (P₁V₁ = P₂V₂).
State Charles's Law.
At constant pressure, the volume of a fixed mass of gas is directly proportional to its absolute (Kelvin) temperature (V₁/T₁ = V₂/T₂).
State the ideal gas law equation.
PV = nRT, where P = pressure, V = volume, n = moles, R = gas constant, T = absolute temperature.
State Avogadro's Law.
Equal volumes of gases at the same temperature and pressure contain equal numbers of molecules.
What is the value of Avogadro's number?
6.022 × 10²³ particles per mole.
What is a solution, and what are its two components?
A homogeneous mixture of a solute (substance dissolved) and a solvent (substance doing the dissolving).
What is the difference between a saturated and an unsaturated solution?
A saturated solution holds the maximum amount of dissolved solute at a given temperature; an unsaturated solution can still dissolve more solute.
Why do liquids take the shape of their container but have fixed volume?
Their particles are close together with strong enough forces to keep a fixed volume, but loose enough to flow and move past one another.
What are the key properties of solids regarding shape and volume?
Solids have a fixed (definite) shape and fixed volume because their particles are tightly packed in a regular arrangement and only vibrate in place.
What is the difference between crystalline and amorphous solids?
Crystalline solids have particles arranged in a regular, repeating pattern (e.g., salt, diamond); amorphous solids have a random arrangement (e.g., glass, rubber).
List three general properties of acids.
They taste sour, turn blue litmus red, have a pH less than 7, and release H⁺ ions in water.
List three general properties of bases.
They taste bitter and feel slippery, turn red litmus blue, have a pH greater than 7, and release OH⁻ ions in water.
What is the pH scale range, and what do the values indicate?
The pH scale runs from 0 to 14: below 7 is acidic, exactly 7 is neutral, and above 7 is basic (alkaline).
What is produced when an acid reacts with a base (neutralization reaction)?
A salt and water (acid + base → salt + water).
What this deck covers
The Chemistry deck follows the Navy Sailor Test Chemistry syllabus — 5 chapters and 16 topics — so questions land on material that is genuinely examinable rather than trivia around it. That works out to roughly 10.0 cards per chapter.
Answers are written to be recallable, not just readable — averaging about 110 characters, which is long enough to carry the reasoning and short enough to say out loud.
A deck like this earns its keep on the second and third pass. Read the syllabus first so you know the shape of the subject, then use the cards to find the specific facts that have not stuck.
Chemistry flashcards FAQ
How many Chemistry flashcards are in this Navy Sailor Test deck?
50 cards. This page previews 24 of them, sampled evenly across the deck so you can judge the difficulty before installing anything.
Are these Navy Sailor Test flashcards free?
Yes. The preview here is free to read with no signup, and the full 50-card deck is free inside the Examius app.
What do the Chemistry cards cover?
They follow the Navy Sailor Test Chemistry syllabus — 5 chapters and 16 topics — so the questions track what is actually examinable.
How should I use these flashcards?
Read the syllabus first so you know the shape of the subject, then drill the deck. Examius schedules each card with spaced repetition, so cards you keep missing come back sooner and ones you know drift further apart.