Hematite is a naturally occurring mineral and a common form of iron ore. The following statements describe physical and chemical
changes occurring to hematite. Which statement describes a chemical change? A. The hematite particles separate from each other but remain the same substance. B. The hematite particles rearrange to form a new substance. C. The hematite particles are mixed with particles of a different substance. D. The hematite particles vibrate more quickly when they are heated. E. The hematite particles are moved from one location to another location.
<h2>Answer : Option B) The hematite particles rearrange to form a new substance.</h2><h3>Explanation :</h3>
Hematite particles when gets rearranged to form a new substance, is an example of a chemical change.
As a chemical changes is usually a change where a substance undergoes a chemical change and forms a new substance; which cannot be easily reversed into reactants by any simple physical methods.
In this example the hematite ore forms a new substance by an irreversible chemical change.
<h2>Physical and Chemical changes occurring to Hematite - Option B</h2>
The Hematite particles rearrange to form a new substance. It describes a physical and chemical change occuring to Hemtite. When these particles get rearranged to produce a new substance, such a change is known as chemical change.
Chemical changes are often a variation in which an object changes chemically and become into a new species. Such a species cannot be reversed into reactants through any simple physical methods. Hematite particles form a new substance by an irreversible chemical change which cannot form reactants by-products.
The water from the lake must first evaporate from the liquid state to the gaseous state and then condense in the air to form vapors. The water molecules absorb energy while evaporating and release it when condensing. Their motion gets faster when they are evaporating and slows back down upon condensation.
Explanation:The skeletal system works as a support structure for your body. It gives the body its shape, allows movement, makes blood cells, provides protection for organs and stores minerals. The skeletal system is also called the musculoskeletal system.
