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Physical and chemical properties can be used to identify an unknown substance by comparing its characteristics to known standards. Physical properties, such as boiling point, melting point, density, and solubility, provide measurable data that can help narrow down possibilities. Chemical properties, including reactivity with acids or bases and behavior under specific conditions, can further confirm the identity of the substance. By systematically analyzing these properties, one can make an informed identification of the unknown substance.
What else can I help you with?
What is a pure sustance for science grade 7?
99,99999 % purity
How do you change one sustance into another?
To change one substance into another, you typically need to undergo a chemical reaction, which involves breaking and forming bonds between atoms. This process often requires specific conditions such as heat, pressure, or the presence of catalysts. For example, combining hydrogen and oxygen under the right conditions can produce water. Additionally, physical changes, like melting or boiling, can alter the state of a substance but do not change its chemical identity.
Is zonrox is a sustance or mixtures?
Zonrox is a substance. It is a brand of liquid bleach commonly used for cleaning and disinfecting purposes.
What best describes the enthalpy of a formation of a sustance?
The enthalpy of formation of a substance, often denoted as ΔH_f, is the change in enthalpy when one mole of a compound is formed from its elements in their standard states. It provides a measure of the energy released or absorbed during the formation process. This value is crucial for understanding the stability of compounds and predicting the heat changes during chemical reactions. Standard enthalpy of formation for elements in their most stable form is defined as zero.
What happen in terms of kinetic theory when you heat a sustance?
When you heat a substance, the kinetic energy of its particles increases, causing them to move faster and collide more frequently with each other. This leads to an overall increase in the substance's temperature and can result in changes such as a phase transition from solid to liquid or liquid to gas.
Is a boiling point a chemical property of a sustance?
No, boiling points and freezing points are physical properties.
This type of of change produces a new sustance what is the substance?
chemical propertieschemical propertieschemical properties
This type of of change produces a new sustance?
chemical change
Is the ununoctium element a pure sustance?
A chemical element is pure.
For toxic chemical sustance to harm you repeat exposure is needed or a one time exposure will do harm on you?
it can hury you. it can hury you.
Is it true that you can touch hardware because it has no sustance?
This statement is not accurate. Hardware, such as computers and electronic devices, is made of physical substances like metals, plastics, and silicon, which have tangible properties. While the term "substance" can refer to various contexts, hardware is indeed physical and can be touched and interacted with in the real world.
The sustance that reduces surface tensin in the alveoli is?
Surfactant is a substance which lines the inside of alveoli. It is composed of a phospholipid bilayer, which have hydrophyllic and hydrophobic properties. This allows it to reduce surface tension.
What type of sustance is crude oil?
compound
What cannot change to a new sustance?
energy
Which sustance is safe for a pregnant woman?
Calcium
What is a measure of movement particles in a sustance?
Temperature.
Is bleach a pure sustance or a mixture?
Bleach is a mixture, typically made up of sodium hypochlorite and water. It is not a pure substance because it contains more than one type of chemical component.
