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Substance that can't be separated?
An example of a substance that cannot be separated into simpler substances by physical or chemical means is an element like gold or oxygen. Elements are made up of only one type of atom, so they cannot be broken down further by ordinary methods.
What changes occur to raw materials during the paper making process?
Papermaking is a series of physical and chemical changes. The physical and chemical changes will depends on raw material used and grade of paper manufactured. For a typical north American paper mill which uses wood for making copying paper, following changes will take place. Operation Type of Change Logging Physical Barking (Removal of bark) Physical Chipping Physical Screening Physical Cooking Chemical Washing Physical Chemical Recovery Chemical Bleaching Chemical Washing Physical Refining Physical Sizing Chemical & Physical Screening Physical Cleaning Physical Wet-end chemical addition Chemical & Physical Sheet Formation Physical Pressing Physical Drying Physical Calendaring Physical Winding Physical Rewinding Physical Cutting Physical
A mixture is made of different materials that can easily be separated.?
heterogeneous
A pure substance is either a thats can not be physically separated?
molecules
What type of substance can only be separated chemically?
A compound that is chemically bonded together, such as water (H2O), can only be separated chemically. This involves breaking the chemical bonds between the atoms in the compound to form different substances. Physical methods like filtration or distillation cannot separate these substances.
Is boiling butter a physical change?
Making butter involves the materials in a mixture to be separated. This makes the process of making butter a type of physical change.
What can a physical process do to the environment?
Depends on the type of the physical process. Some are beneficial, some are harmful to the environment.
Which type of physical hazard causes or supports fire in other materials?
Heat or temperature is a physical hazard that can cause or support fire in other materials.
What type of physical change will while crushing a rock and burning a candle?
1. Crushing is a physical process.2. Burning is a chemical process.
What cannot be separated into its individual elements by physical means?
Chemical compounds or molecules cannot be separated into their individual elements by physical means. These substances require chemical reactions or processes, such as electrolysis or heating, to break the bonds between their constituent elements.
If a substance can be physically separated into its components is it a pure substance or a mixture?
If a substance can be physically separated into its components, it is a mixture, not a pure substance. A pure substance consists of only one type of particle and cannot be separated into other substances by physical means.
Are pure substances made up of two materials that have definite properties?
No, pure substances are made up of only one type of material with definite properties. They cannot be separated into other substances by physical methods. Examples include elements like gold, and compounds like water.
What type of change is seen in Bursting of crackers?
The bursting of crackers involves a chemical change, where the chemical composition of the materials in the crackers is altered to produce the sound, light, and heat effects. This process is irreversible.
Water and ethanol can be separated by heating the ethanol until it boils away from the water What type of change is this?
This is a physical change because the identity of the substances (water and ethanol) remains the same. The change is reversible, as both water and ethanol can be recovered from the separated mixture.
What type of fitness test was developed to reduce adverse impact in the selection process?
physical agility
Is the process of casting actors that have a physical appearance and personality similar to a particular character in a play?
Type-casting.
What type of controls in the composite risk management process take the forms of barriers and guards?
Physical Controls
