Bones are made up of Calcium Phosphate given by the chemical formula, 
. When bones are kept in Hydrochloric acid, given by the chemical formula, HCl, they become soft because the calcium compound present in the bones changes its form. The following double displacement reaction takes place when the bones are kept in HCl,
---> 
Calcium chloride is water soluble, and gets washed away. This makes the bone thin and soft.
Answer:
Both require a vacuum and a compound microscope has greater magnification ability than a simple microscope.
Explanation:
Answer:
electromagnetic energy
Explanation:
sunlight is a radiation, from the electromagnetic spectrum we have visible light and ultraviolet radiation whose source is the light
Answer:
How are we supposed to make a project for you....
Explanation:
Answer: Testable Question
Explanation:
- testable questions are always about
changing one variable to see what the
effect is on another variable.
- Can be answered through
that involve experiments, ,
or surveys
, investigations
, observations
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