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Is the X-ray machine at an airport checking the physical or the chemical properties of the substances in your luggage?
The X-ray machine at an airport is checking the physical properties of the substances in your luggage, such as their shape, density, and structure. It is not able to assess the chemical properties of the substances.
Can all substances go through physical changes?
Yes, all substances can undergo physical changes. Physical changes do not alter the chemical composition of a substance, but rather change its physical properties such as shape, size, or state (solid, liquid, gas). Examples of physical changes include melting, freezing, boiling, or dissolving.
How will you classify matter as physical or chemical?
Physical never changes what it is; For example if you boil water its physical because you can change it back to water from precipitation, or if you tear a sheet of paper up it's still paper. Chemical- changes it's whole from it can never go back to what it was; Example, burning wood
Are substances that combine or change?
Substances that combine or change to form new substances go through a chemical reaction. In a chemical reaction, bonds between atoms are broken and new bonds are formed. This results in the creation of new substances with different properties than the original substances.
What happens when a physical change does not go to completion?
When a physical change does not go to completion, there may be a partial alteration in the physical properties of the substance involved. This could result in a temporary or incomplete transformation, where some characteristics may change while others remain unchanged. Incomplete physical changes often mean that the substance retains some of its original properties or structure.
What 2 things can chemical and physical change go through?
Chemical changes involve the formation of new substances with different chemical properties, while physical changes involve alterations in the appearance or state of matter without changing the chemical composition. Chemical changes typically involve the breaking and forming of chemical bonds, resulting in new substances with different properties. Physical changes, on the other hand, involve changes in physical characteristics such as shape, size, phase, or state of matter without altering the chemical composition of the substance.
Is reactivity with water a physical or chemical change?
This is a physical change. The bubbles are pockets of steam which is the same chemical as water, just in a different state.
When substances go throw chemical changes what will all ways happen?
During a chemical change, new substances are always formed as bonds between atoms are broken and reformed. This results in a rearrangement of atoms, causing a change in the chemical properties of the original substances. Energy is often released or absorbed during these reactions.
When a can is crushed does it go through a physical change or a chemical change?
Yes, a crushed can has chemical properties. They are the same as those of the can before crushing. Crushing a can is a physical reaction and not a chemical one. For instance, if a soup can is made of steel, the steel can be chemically attacked by something like sulfuric acid. And this is true whether the can is crushed or not.
What is difference between a physical property and a chemical property?
The easiest way to differentiate between chemical and physical properties are that almost all chemical properties are irreversible, meaning they can't go back to what they were before. A physical property is like what states of matter, shape, color, size, weight, etc. Chemical properties are properties that happen when there is a chemical reaction. Rust on iron, changing color of leaves, endo and exothermic reactions, and so on.
How are physical and chemical properties of matter useful?
Physical and chemical properties of matter are useful because they can help you identify that substance. For example paper burns very easily and aluminum doesn't, this is how they can be described individually.
What is an effect of a chemical change?
A chemical change is when substances become new substances that cant go back to its physical properties (the ability to participate in chemical reactions). Chemical changes usually absorb or let off heat. Often, a second chemical change is needed to reverse an initial chemical change. A chemical change is when substances become new substances that have different chemical properties (the ability to participate in chemical reactions). Chemical changes usually absorb or let off heat. Often, a second chemical change is needed to reverse an initial chemical change.
