what do paramecia use for defense
What Do Paramecia Use For Defense? How do paramecium ...
Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. … An example of a chemical change is the reaction between sodium and water to produce sodium hydroxide and hydrogen.
Some signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color change, formation of a precipitate, formation of a gas, odor change, temperature change.
As the names suggest, a physical change affects a substance’s physical properties, and a chemical change affects its chemical properties. Many physical changes are reversible (such as heating and cooling), whereas chemical changes are often irreversible or only reversible with an additional chemical change.
Physical properties are used to observe and describe matter. … Examples of physical properties would include freezing, melting, and boiling points, density, mass, and volume. Examples of chemical properties include heat of combustion, reactivity with other chemicals, flammability, and types of bonds that will form.
What is the difference between chemical properties and physical properties? chemical properties are characteristics that describe a substance’s ability to change into different substances, and physical properties are characteristics that can be observed without changing it into another substance.
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