Physical Properties
This property describes how much matter is packed into a given volume of a substance. What is this property called?
What is density?
Measurable by destroying the substance.
What is a chemical property?
This sign of a chemical reaction occurs when a new solid forms and settles out of a liquid mixture.
What is the formation of a precipitate?
The process of Photosynthesis, when a plant absorbs the energy from the sun to create glucose within its cells.
What is an Endothermic Reaction?
This scale, ranging from 0 to 14, measures how acidic or basic a substance is.
What is the pH scale?
This property measures how easily a substance can be scratched or dented. What is this property?
What is hardness?
This property refers to how easily a substance can react with acids to form new substances.
What is reactivity?
This observable sign happens when substances react and produce light or flames.
What is the production of light?
When two substances are mixed and the temperature increases, this sign of a chemical reaction is taking place.
What is the release of heat (or an exothermic reaction)?
A chemical substance that speeds up a chemical reaction.
What is a catalyst?
This term describes the temperature at which a solid turns into a liquid. What is it called?
What is the melting point?
This term describes a substance's ability to rust or tarnish when exposed to air and moisture.
What is oxidation?
This sign is observed when a new gas is formed, often seen as bubbles or fizzing in a liquid.
What is the formation of gas?
A chemical property that involves the release of energy in the form of heat or light during a reaction is known as this
What is exothermic reaction?
The starting material in a chemical reaction.
What are the reactants?
This property measures the ability of a substance to conduct heat or electricity. What is it known as?
What is conductivity?
Lemon juice, with a pH around 2, is an example of this type of substance.
What is an acid?
This sign of a chemical reaction is noticed when a substance changes its color during the reaction.
What is a color change?
Sometimes a chemical reaction will absorb heat, making the surroundings cooler. This sign is known as this.
What is an endothermic reaction (or absorption of heat)?
A substance made of two or more elements chemically combined.
This physical property determines how well a substance can dissolve in another substance, like sugar in water. What is this property called?
What is solubility?
This term describes the ability of a substance to react with oxygen and produce heat and light.
What is flammability?
This sign of a chemical reaction occurs when an unpleasant or different smell is produced.
What is the production of an odor?
Cellular Respiration, the process of breaking down glucose to release energy.
What is an exothermic reaction?
A substance with a pH level greater than 7. Example: Alkaline Water, Soap or Bleach.
What is a Base?