Fundamentals of Chemistry, Acidity and Alkalinity

What are molecules?

• Makes up all of matter

• Is pure substance of everything that isn't matter

• A molecule is a made up of same or different types of atoms

• is a chemical formula

What is a compound ?

• Same atoms are combined together

• Different atom that are combined together

• Single stable atom

Determine example of compound (You may choose more than 1 answer)

• Oxygen gas, O2

• Carbon dioxide, CO2

• Nitrogen gas, N2

• Sodium Hydroxide(NaOH)

What is a homogeneous mixture

• A mixtures that are evenly mixed so you cannot see the different parts of mixture

• A mixture where you can easily see the different parts of mixture

• Mixture that form new chemical substance

What is a mixture?

• Two or more substances are combined with a chemical reaction.

• Mixture is when you digest food together

• Two or more substances are physically mixed

What is an element?

• A pure substance made up of two or more elements.

• A pure substance made of one element represented by a chemical symbol

• Different substance combine together

The meaning of suspension is:

• A solution containing the maximum concentration of a solute.

• Solid form due to chemical reaction occurs in a liquid solution.

• The ability for a given substance, the solute, to dissolve in a solvent.

• A mixture between a liquid and particles of a solid which are do not dissolve and its particles are dispersed throughout the liquid.

The meaning of precipitation is:

• A mixture between a liquid and particles of a solid which are do not dissolve and its particles are dispersed throughout the liquid.

• Solid form due to chemical reaction occurs in a liquid solution.

• The ability for a given substance, the solute, to dissolve in a solvent.

• A solution containing the maximum concentration of a solute.

“Homogenous mixture that contain solute and solvent” is refer to:

• Solubility

• Suspension

• Solution

• Saturation

What are chemical reactions?

• Allows the cells function properly and maintain life.

• Amount of an element that is at the end was at the beginning.

• The amount of energy the organism uses.

• Process that changes substances into new substances