Unit 3 Properties of Matter Revisit

Front

What is a chemical reaction?

Back

A process where substances (reactants) undergo a transformation to form new substances (products), often involving changes in energy.

Front

What does it mean for a substance to dissolve?

Back

When a substance (solute) mixes with a liquid (solvent) to form a solution, where the solute is evenly distributed within the solvent.

Front

What is an independent variable in an experiment?

Back

The variable that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

Front

What is a dependent variable in an experiment?

Back

The variable that is measured or observed in an experiment, which is affected by changes in the independent variable.

Front

What is pH?

Back

A scale used to measure the acidity or basicity of a solution, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.

Front

What is an alloy?

Back

A mixture of two or more metals, or a metal and another element, that has enhanced properties compared to the individual components.

Front

What is the role of heat in a chemical reaction?

Back

Heat can be absorbed or released during a chemical reaction, affecting the reaction rate and the state of the substances involved.

Front

What is the significance of chemical bonding?

Back

Chemical bonding is the process where atoms combine to form molecules, determining the properties and behavior of substances.

Front

What is a reactant?

Back

A substance that undergoes a chemical change in a reaction, combining with other reactants to form products.

Front

What is a product in a chemical reaction?

Back

The new substances formed as a result of a chemical reaction, produced from the reactants.