Unit A: Chemistry Overview

False (B)

Matter is anything that has mass and occupies space.

<p>identification</p> Signup and view all the answers

<p>Matter = Power derived from chemical or physical resources Energy = A physical condition determined by molecular structure State = A physical substance which has mass, and occupies space</p> Signup and view all the answers

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

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

<p>Boiling Point</p> Signup and view all the answers

<p>Solubility</p> Signup and view all the answers

<p>Malleability = Ability to be stretched without breaking Conductivity = Ability to conduct heat or electricity Crystal Formation = Crystalline appearance Solubility = Ability to dissolve</p> Signup and view all the answers

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

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

<p>Freezing</p> Signup and view all the answers

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

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

<p>Smelting</p> Signup and view all the answers

<p>Suspension</p> Signup and view all the answers

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

<p>Compound = A mixture that appears uniform throughout Homogenous mixture = A substance made up of two or more elements chemically combined in a fixed ratio Heterogeneous mixture = A mixture with visible components that can be easily separated Colloid = A mixture where particles are suspended but cannot be easily filtered out Suspension = A mixture where particles are dispersed throughout a fluid and can be filtered out</p> Signup and view all the answers

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

<p>Annealing</p> Signup and view all the answers

<p>spontaneous</p> Signup and view all the answers

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

<p>Atoms can be divided into smaller particles. (A)</p> Signup and view all the answers

<p>Thomson's model proposed a positive sphere with embedded negative charges, while Rutherford's model suggested a dense, positively charged nucleus surrounded by orbiting electrons.</p> Signup and view all the answers

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

<p>John Dalton = Billiard Ball Model J.J. Thomson = Raisin Bun Model Ernest Rutherford = Planetary Model Niels Bohr = Bohr Model</p> Signup and view all the answers

<p>orbits</p> Signup and view all the answers

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

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

A physical substance which has mass and occupies space.

Power derived from chemical or physical resources.

A physical condition determined by molecular structure.

Characteristics that define and describe substances.

The temperature at which a substance boils or condenses.

The temperature at which a substance melts or freezes.

Ability of a material to be beaten or rolled into sheets without crumbling.

Ability of a substance to be stretched into wires without breaking.

The physical form a substance takes: solid, liquid, or gas.

Ability to conduct heat or electricity.

Tendency of a substance to corrode or dissolve in water.

Substances containing only one type of particle that can't be broken down by physical means.

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

Consist of two or more pure substances that retain their individual properties.

A mixture that appears uniform throughout; looks like one substance.

A mixture where the individual components are visible and can be separated.

A heterogeneous mixture where particles are dispersed throughout a fluid.

A mixture where particles are suspended and do not settle; appears homogeneous.

A process resulting in the formation of new substances with different properties.

The idea that living organisms can arise from non-living materials.

Vital heat, often related to life forces.

Refers to the soul or vital principle in living beings.

Dalton's model showing atoms as indivisible and with specific properties.

Thompson's model depicting atoms with a positive mass and embedded negative particles.

Rutherford's concept of an atom with a dense nucleus and orbiting electrons.

Rutherford's experiment that revealed the dense nucleus of atoms through particle deflection.

Bohr's model with electrons in specific energy levels around the nucleus.

Modern atomic model describing electronic positions by probabilities, not fixed paths.