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A method which would quickly reveal if the solution was saturated or unsaturated is to add heat to the solution and stir.
<h3>What is solubility?</h3>
Solubility can be defined as a terminology that describes how readily a chemical substance (compound) can be dissolved in a solvent to form a solution, which may either be saturated or unsaturated.
In Chemistry, a chemical substance (compound) is considered to be soluble if it dissolves completely in a solvent such as water.
In this experiment, a method which can be used by the student to quickly reveal if the solution was saturated or unsaturated is to add heat to the solution and stir because it will increase the rate in which it dissolves and settles at the bottom.
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27.0 g
Explanation:
The density of a substance tells you the mass of exactly one unit of volume of said substance.
In your case, aluminium is said to have a density of
density Al
=
2.70 g
.
cm
−
3
This tells you that every
1 mL
of aluminium has a mass of
2.70 g
.
All you have to do now is use the density of aluminium as a conversion factor to go from cubic centimenters of aluminium to grams
10.0
cm
3
⋅
2.70 g
1
cm
3
=
27.0 g
−−−−−
The answer is rounded to three sig figs.
Answer,
Cerebellum.
Explanation,
The cerebellum receives information from the sensory systems, the spinal cord, and other parts of the brain and then regulates motor movements.It also coordinates voluntary movements such walking, speech,and balance,resulting to smooth and balanced muscular activity.it also assists in movement of the eye. it is found at the back of the brain.
1. The correct statement that describes a Redox reaction is ( D ) ; A chemical reaction in which electrons are transferred between reactants.
2. The chemical formula that shows the correct subscripts is ( D ) BeF₂
3. The type of reaction that is shown is ; ( C ) decomposition reaction
A Redox reaction ( oxidation-reduction reaction ) involves the exchange/transfer electrons between reactants and the change in the oxidation number of the molecules involved in the reaction changes when an electron is either gained or lost.
Given that the Be has four ( 4 ) electrons and Fluorine has nine ( 9 ) electrons when they combine Fluorine will be left with an excess of electrons therefore the correct chemical formula will be BeF₂
The breaking up of an element into its smaller parts in a chemical reaction is known as a decomposition reaction.
