Chemistry Concepts Quiz

Activation Rate

• The measure of how the reactant or product concentration changes.

Bent

• A description of the water molecule's shape.

Big Bang Nucleosynthesis

• The process that creates light elements like hydrogen and helium.

Big Bang Theory

• The most accepted understanding of the universe's development and expansion.

Boiling Point

• The temperature when a liquid turns into a gas.

H-Bonding

• The reason water's boiling point is greater than dihydrogen sulfide.

Carbohydrates

• Organic molecules soluble in water, providing quick energy.

Carbon, Hydrogen and Oxygen

• The elements that make up carbohydrates.

Carcinogen

• A substance that might cause cancer.

Catalysts

• Substances increasing reaction rates by reducing activation energy, but don't get used up.

CCl4

• Molecules with high melting points.

Chemical Reaction

• When multiple substances combine to produce a new substance.

Chemical Energy

• Energy stored within chemical bonds, influencing particle collisions.

Chlorine

• Bleach's active ingredient which removes stains.

Cleaning Product

• Can prevent the spread of germs and control allergens.

Concentration

• The concentration of particles in a volume or solution.

Concentration of Reactant

• A factor that directly impacts the speed of a chemical reaction.

Concentration, Particle Size and Temperature

• Factors affecting the rate of a chemical reaction.

Deoxyribonucleic acid (DNA)

• The blueprint of life, holding genetic information.

Disinfectants

• Substances that kill pathogens on surfaces.

Distribution of elements and isotopes in the universe

• Hydrogen and helium are spread evenly, while heavier elements are not.

DNA

• Its double helix structure allows for storing and replicating genetic data precisely.

Electronegativity

• The pull an atom has on shared electrons within a molecule.

Energy

• Can change forms but cannot be created or destroyed.

Glucose

• A monosaccharide found in dextrose.

Glycogen

• The storage form of glucose, particularly in the liver.

H-bonding

• Dipole-dipole and London forces, ranked according to strength.

Hydrogen

• The lightest element and the most ample in outer space.

Lipids

• Including fats, steroids, and triglycerides.

London Forces

• The weakest intermolecular forces.

Mendeleev

• Created a system for organizing elements by atomic weight.

Non-Renewable

• Energy sources that will use up over time.

Nucleic Acids

• Biological molecules transporting and storing genetic information.

Particle Accelerator

• A mechanism to accelerate protons to overcome repulsion.

Polar Bonds

• Result in nonpolar covalent compounds, dependent on the compound's structure.

Polar Covalent Bond

• The bond type holding atoms in water molecules together.

Polar Molecules

• Having high boiling and melting points.

Protein and Lipid

• Essential biological molecules forming cell membranes.

Rate of Reaction

• The speed at which a reaction happens.

Reactant

• Substances entering a reaction and getting altered.

Surface Tension

• The energy needed to increase the surface area by a certain amount.

Temperature in Chemical reaction

• Higher temperatures energize particles, increasing reaction speed.

Vinegar

• Dissolves easily in water.

Viscous Substance

• Example: blood, honey, syrup.

Water

• High surface tension, low viscosity, high boiling point.