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First of all there are four possible physical states of matter...liquid, gas, solid, plasma ...don't worry about plasma though.
It's liquid if it flows
It's gas if it evaporates
It's solid when the shape of the object is rigid and the week covalent/ionic bonds between molecules are still present.
Change of state occurs by endothermic or exothermic reactions.
What else can I help you with?
What measure that determines the state of a substances?
Temperature would be the typical answer.
In what physical state are substances with a definite shape and volume?
solids
How are molecules arranged in substances?
It depends on the substance and the physical state of the substance.
What does change of state operation?
Change of state is a property that involves the substances of chemical and physical changes
Can substances that have undergone a physical change be changed back to their original state?
Yes
What kinds of changes in substances are always physical change?
The kinds of changes in substances that are always physical changes are changes in the state. This is the change from solid, to liquid and then to gas and the reverse.
How strongly a substances particles attract one another is what determines the substances?
The number of protons (aka atomic number) determines the element or substance.
Most substances change their physical state and?
Most substances change their physical state and transition from solid, to liquid, to gas when heated or cooled. This phase transition occurs due to changes in the arrangement and movement of the particles within the substance.
Are state changes physical or chemical changes?
State changes are physical changes because they involve a change in the physical properties of a substance, such as its form or state of matter (solid, liquid, gas). No new substances are formed during a state change, making it a physical change rather than a chemical change.
What happens to the physical properties of substances when they are at room temperature?
At room temperature, the physical properties of substances can change. For example, some substances may melt, freeze, evaporate, or condense. These changes can affect properties like color, texture, and state of matter.
Why are state symbols used in a chemical equations?
State symbols in chemical equations are used to indicate the physical state of the substances involved (solid, liquid, gas, or aqueous solution). This information is important because the physical state can affect the reaction conditions and the behavior of the substances in the reaction. Including state symbols provides a more complete and accurate representation of the chemical reaction.
What substances undergo physical change?
All substances have physical changes.
