Chemistry Unit A Quiz

<p>Both B and C (E)</p> Signup and view all the answers

<p>Iron rusting (A)</p> Signup and view all the answers

<p>The ability of a substance to be stretched into a wire. (D)</p> Signup and view all the answers

<p>Boiling point (B)</p> Signup and view all the answers

<p>Solubility (A)</p> Signup and view all the answers

<p>Conductivity (B)</p> Signup and view all the answers

<p>Crystal Formation (C)</p> Signup and view all the answers

<p>Compound (B)</p> Signup and view all the answers

<p>Melting point (C)</p> Signup and view all the answers

<p>Corrosion (D)</p> Signup and view all the answers

<p>Sand and water (C)</p> Signup and view all the answers

<p>No change in energy levels (C)</p> Signup and view all the answers

<p>Smelting (D)</p> Signup and view all the answers

<p>Freezing water (A)</p> Signup and view all the answers

<p>Annealing (C)</p> Signup and view all the answers

<p>A mixture where particles are suspended but cannot be easily filtered out (A)</p> Signup and view all the answers

<p>Water (B)</p> Signup and view all the answers

<p>From non-living material (C)</p> Signup and view all the answers

<p>Atoms are made up of a positively charged sphere with negatively charged particles embedded within it. (B)</p> Signup and view all the answers

<p>The scattering of high-speed particles at various angles when passing through a sheet of gold foil. (B)</p> Signup and view all the answers

<p>The Billiard Ball Model (A)</p> Signup and view all the answers

<p>The Bohr Model (B)</p> Signup and view all the answers

<p>The Quantum Mechanical Model (D)</p> Signup and view all the answers

<p>Atoms of different elements can combine in fixed ratios to form compounds. (A), Atoms of the same element have the same mass and properties. (B)</p> Signup and view all the answers

<p>Developing the concept of quantized energy levels for electrons in atoms. (C)</p> Signup and view all the answers

<p>He showed that an atom had a small, dense, positively charged nucleus. (B)</p> Signup and view all the answers

The branch of science studying matter, its properties, and interactions.

A physical substance that has mass and occupies space.

Power derived from chemical or physical resources.

A physical condition influenced by molecular structure.

Characteristics that define substances and their behavior.

Vital heat; a concept related to life force.

The soul; considered essential to life.

John Dalton's model stating atoms are indivisible and identical for each element.

J.J. Thompson's model where positive charge is the bun and electrons are the raisins.

Ernest Rutherford's model depicting electrons orbiting a dense nucleus like planets.

Rutherford's experiment showing atoms have a dense nucleus.

Niels Bohr's model where electrons are in specific orbits around the nucleus.

Modern atomic model describing the position of electrons using probabilities.

Substances made of two or more elements chemically combined in specific ratios.

Contain two or more pure substances that retain their individual properties.

A mixture that appears uniform and consistent throughout.

A mixture where the individual components are visible and distinct.

Processes that form new substances with different properties and energy changes.

The science of producing and using metals.

The process of heating and cooling metal to make it stronger and less brittle.

An outdated theory that life can arise from non-living matter.

The temperature at which a substance boils or condenses.

The temperature at which a substance melts or freezes.

Ability to be beaten or rolled into sheets without crumbling.

Ability to be stretched into wires without breaking.

Existence as a solid, liquid, or gas.

Ability to conduct heat or electricity.

Ability to dissolve in a solvent.

Combustion process resulting in flame, heat, and light.